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   http://functions.wolfram.com/04.08.29.0002.01
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    Product[GCD[Subscript[n, Subscript[j, 1]], 
            Subscript[n, Subscript[j, 2]], â¦, 
            Subscript[n, Subscript[j, m]]], 
        {Subscript[j, m], Subscript[j, m - 1] + 1, k},
        â¦,
        {Subscript[j, 2], Subscript[j, 1] + 1, k},
        {Subscript[j, 1], 1, k}]
Product[LCM[Subscript[n, Subscript[j, 1]], 
            Subscript[n, Subscript[j, 2]], â¦, 
            Subscript[n, Subscript[j, m]]]^(m - 1), 
        {Subscript[j, m], Subscript[j, m - 1] + 1, k},
        â¦,
        {Subscript[j, 2], Subscript[j, 1] + 1, k}
        {Subscript[j, 1], 1, k}] >= 
   Product[Subscript[n, j], {j, 1, k}]^
           ((k - 1)!/((k - m)!*(m - 1)!)) >= 
Product[GCD[Subscript[n, Subscript[j, 1]], 
            Subscript[n, Subscript[j, 2]], â¦, 
            Subscript[n, Subscript[j, m]]]^(m - 1), 
       {Subscript[j, m], Subscript[j, m - 1] + 1, k},
       â¦,
       {Subscript[j, 2],  Subscript[j, 1] + 1, k}
       {Subscript[j, 1], 1, k}]*
Product[LCM[Subscript[n, Subscript[j, 1]], 
            Subscript[n, Subscript[j, 2]], â¦, 
            Subscript[n, Subscript[j, m]]], 
        {Subscript[j, m], Subscript[j, m - 1] + 1, k},
        â¦,
        {Subscript[j, 2], Subscript[j, 1] + 1, k}
        {Subscript[j, 1], 1, k}] /; 
   Subscript[n, 1] â ï½ && Subscript[n, 1] > 0 && 
   Subscript[n, 2] â ï½ && Subscript[n, 2] > 0 && 
   ⦠&& Subscript[n, k] â ï½ && 
   Subscript[n, k] > 0 && k â ï½ && k > 0 && 
   m â ï½ && 1 <= m <= k 
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   Cell[BoxData[RowBox[List[RowBox[List[RowBox[List[RowBox[List["(", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "1"], "=", "1"]], "k"], RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "2"], "=", RowBox[List[SubscriptBox["j", "1"], "+", "1"]]]], "k"], RowBox[List["\[Ellipsis]", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "m"], "=", RowBox[List[SubscriptBox["j", RowBox[List["m", "-", "1"]]], "+", "1"]]]], "k"], RowBox[List["GCD", "[", RowBox[List[SubscriptBox["n", SubscriptBox["j", "1"]], ",", SubscriptBox["n", SubscriptBox["j", "2"]], ",", "\[Ellipsis]", ",", SubscriptBox["n", SubscriptBox["j", "m"]]]], "]"]]]]]]]]]], " ", ")"]], RowBox[List["(", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "1"], "=", "1"]], "k"], RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "2"], "=", RowBox[List[SubscriptBox["j", "1"], "+", "1"]]]], "k"], RowBox[List["\[Ellipsis]", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "m"], "=", RowBox[List[SubscriptBox["j", RowBox[List["m", "-", "1"]]], "+", "1"]]]], "k"], SuperscriptBox[RowBox[List["LCM", "[", RowBox[List[SubscriptBox["n", SubscriptBox["j", "1"]], ",", SubscriptBox["n", SubscriptBox["j", "2"]], ",", "\[Ellipsis]", ",", SubscriptBox["n", SubscriptBox["j", "m"]]]], "]"]], RowBox[List["m", "-", "1"]]]]]]]]]]], " ", ")"]]]], "\[GreaterEqual]", SuperscriptBox[RowBox[List["(", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List["j", "=", "1"]], "k"], SubscriptBox["n", "j"]]], ")"]], FractionBox[RowBox[List[RowBox[List["(", RowBox[List["k", "-", "1"]], ")"]], "!"]], RowBox[List[RowBox[List[RowBox[List["(", RowBox[List["k", "-", "m"]], ")"]], "!"]], RowBox[List[RowBox[List["(", RowBox[List["m", "-", "1"]], ")"]], "!"]]]]]], "\[GreaterEqual]", RowBox[List[RowBox[List["(", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "1"], "=", "1"]], "k"], RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "2"], "=", RowBox[List[SubscriptBox["j", "1"], "+", "1"]]]], "k"], RowBox[List["\[Ellipsis]", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "m"], "=", RowBox[List[SubscriptBox["j", RowBox[List["m", "-", "1"]]], "+", "1"]]]], "k"], SuperscriptBox[RowBox[List["GCD", "[", RowBox[List[SubscriptBox["n", SubscriptBox["j", "1"]], ",", SubscriptBox["n", SubscriptBox["j", "2"]], ",", "\[Ellipsis]", ",", SubscriptBox["n", SubscriptBox["j", "m"]]]], "]"]], RowBox[List["m", "-", "1"]]]]]]]]]]], " ", ")"]], RowBox[List["(", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "1"], "=", "1"]], "k"], RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "2"], "=", RowBox[List[SubscriptBox["j", "1"], "+", "1"]]]], "k"], RowBox[List["\[Ellipsis]", RowBox[List[UnderoverscriptBox["\[Product]", RowBox[List[SubscriptBox["j", "m"], "=", RowBox[List[SubscriptBox["j", RowBox[List["m", "-", "1"]]], "+", "1"]]]], "k"], RowBox[List["LCM", "[", RowBox[List[SubscriptBox["n", SubscriptBox["j", "1"]], ",", SubscriptBox["n", SubscriptBox["j", "2"]], ",", "\[Ellipsis]", ",", SubscriptBox["n", SubscriptBox["j", "m"]]]], "]"]]]]]]]]]], " ", ")"]]]]]], "/;", RowBox[List[RowBox[List[SubscriptBox["n", "1"], "\[Element]", "\[DoubleStruckCapitalZ]"]], "\[And]", RowBox[List[SubscriptBox["n", "1"], ">", "0"]], "\[And]", RowBox[List[SubscriptBox["n", "2"], "\[Element]", "\[DoubleStruckCapitalZ]"]], "\[And]", RowBox[List[SubscriptBox["n", "2"], ">", "0"]], "\[And]", "\[Ellipsis]", "\[And]", RowBox[List[SubscriptBox["n", "k"], "\[Element]", "\[DoubleStruckCapitalZ]"]], "\[And]", RowBox[List[SubscriptBox["n", "k"], ">", "0"]], "\[And]", RowBox[List["k", "\[Element]", "\[DoubleStruckCapitalZ]"]], "\[And]", RowBox[List["k", ">", "0"]], "\[And]", RowBox[List["m", "\[Element]", "\[DoubleStruckCapitalZ]"]], "\[And]", RowBox[List["1", "\[LessEqual]", "m", "\[LessEqual]", "k"]]]]]]]] 
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   <math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'>  <semantics>  <mrow>  <mrow>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  <mo> = </mo>  <mn> 1 </mn>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 2 </mn>  </msub>  <mo> = </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <mo> … </mo>  <mo> ⁢ </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mi> m </mi>  </msub>  <mo> = </mo>  <mrow>  <msub>  <mi> j </mi>  <mrow>  <mi> m </mi>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msub>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <mi> gcd </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  </msub>  <mo> , </mo>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mn> 2 </mn>  </msub>  </msub>  <mo> , </mo>  <mo> … </mo>  <mo> , </mo>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mi> m </mi>  </msub>  </msub>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  <mo> = </mo>  <mn> 1 </mn>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 2 </mn>  </msub>  <mo> = </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <mo> … </mo>  <mo> ⁢ </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mi> m </mi>  </msub>  <mo> = </mo>  <mrow>  <msub>  <mi> j </mi>  <mrow>  <mi> m </mi>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msub>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mi> k </mi>  </munderover>  <msup>  <mrow>  <mi> lcm </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  </msub>  <mo> , </mo>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mn> 2 </mn>  </msub>  </msub>  <mo> , </mo>  <mo> … </mo>  <mo> , </mo>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mi> m </mi>  </msub>  </msub>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mi> m </mi>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msup>  </mrow>  </mrow>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> ≥ </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <mi> j </mi>  <mo> = </mo>  <mn> 1 </mn>  </mrow>  <mi> k </mi>  </munderover>  <msub>  <mi> n </mi>  <mi> j </mi>  </msub>  </mrow>  <mo> ) </mo>  </mrow>  <mfrac>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <mi> k </mi>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ! </mo>  </mrow>  <mrow>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <mi> k </mi>  <mo> - </mo>  <mi> m </mi>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ! </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <mi> m </mi>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ! </mo>  </mrow>  </mrow>  </mfrac>  </msup>  <mo> ≥ </mo>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  <mo> = </mo>  <mn> 1 </mn>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 2 </mn>  </msub>  <mo> = </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <mo> … </mo>  <mo> ⁢ </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mi> m </mi>  </msub>  <mo> = </mo>  <mrow>  <msub>  <mi> j </mi>  <mrow>  <mi> m </mi>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msub>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mi> k </mi>  </munderover>  <msup>  <mrow>  <mi> gcd </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  </msub>  <mo> , </mo>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mn> 2 </mn>  </msub>  </msub>  <mo> , </mo>  <mo> … </mo>  <mo> , </mo>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mi> m </mi>  </msub>  </msub>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mi> m </mi>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msup>  </mrow>  </mrow>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  <mo> = </mo>  <mn> 1 </mn>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 2 </mn>  </msub>  <mo> = </mo>  <mrow>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <mo> … </mo>  <mo> ⁢ </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <msub>  <mi> j </mi>  <mi> m </mi>  </msub>  <mo> = </mo>  <mrow>  <msub>  <mi> j </mi>  <mrow>  <mi> m </mi>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msub>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mi> k </mi>  </munderover>  <mrow>  <mi> lcm </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mn> 1 </mn>  </msub>  </msub>  <mo> , </mo>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mn> 2 </mn>  </msub>  </msub>  <mo> , </mo>  <mo> … </mo>  <mo> , </mo>  <msub>  <mi> n </mi>  <msub>  <mi> j </mi>  <mi> m </mi>  </msub>  </msub>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  <mo> /; </mo>  <mrow>  <mrow>  <msub>  <mi> n </mi>  <mn> 1 </mn>  </msub>  <mo> ∈ </mo>  <msup>  <mi> ℕ </mi>  <mo> + </mo>  </msup>  </mrow>  <mo> ∧ </mo>  <mrow>  <msub>  <mi> n </mi>  <mn> 2 </mn>  </msub>  <mo> ∈ </mo>  <msup>  <mi> ℕ </mi>  <mo> + </mo>  </msup>  </mrow>  <mo> ∧ </mo>  <mo> … </mo>  <mo> ∧ </mo>  <mrow>  <msub>  <mi> n </mi>  <mi> k </mi>  </msub>  <mo> ∈ </mo>  <msup>  <mi> ℕ </mi>  <mo> + </mo>  </msup>  </mrow>  <mo> ∧ </mo>  <mrow>  <mi> k </mi>  <mo> ∈ </mo>  <msup>  <mi> ℕ </mi>  <mo> + </mo>  </msup>  </mrow>  <mo> ∧ </mo>  <mrow>  <mi> m </mi>  <mo> ∈ </mo>  <msup>  <mi> ℕ </mi>  <mo> + </mo>  </msup>  </mrow>  <mo> ∧ </mo>  <mrow>  <mn> 1 </mn>  <mo> ≤ </mo>  <mi> m </mi>  <mo> ≤ </mo>  <mi> k </mi>  </mrow>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <ci> Condition </ci>  <apply>  <geq />  <apply>  <times />  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 2 </cn>  </apply>  </bvar>  <lowlimit>  <apply>  <plus />  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  </bvar>  <lowlimit>  <cn type='integer'> 1 </cn>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <times />  <ci> … </ci>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <ci> m </ci>  </apply>  </bvar>  <lowlimit>  <apply>  <plus />  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <apply>  <plus />  <ci> m </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <gcd />  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  </apply>  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 2 </cn>  </apply>  </apply>  <ci> … </ci>  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <ci> m </ci>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 2 </cn>  </apply>  </bvar>  <lowlimit>  <apply>  <plus />  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  </bvar>  <lowlimit>  <cn type='integer'> 1 </cn>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <times />  <ci> … </ci>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <ci> m </ci>  </apply>  </bvar>  <lowlimit>  <apply>  <plus />  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <apply>  <plus />  <ci> m </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <power />  <apply>  <lcm />  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  </apply>  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 2 </cn>  </apply>  </apply>  <ci> … </ci>  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <ci> m </ci>  </apply>  </apply>  </apply>  <apply>  <plus />  <ci> m </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  <apply>  <power />  <apply>  <product />  <bvar>  <ci> j </ci>  </bvar>  <lowlimit>  <cn type='integer'> 1 </cn>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <ci> j </ci>  </apply>  </apply>  <apply>  <times />  <apply>  <factorial />  <apply>  <plus />  <ci> k </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <apply>  <power />  <apply>  <times />  <apply>  <factorial />  <apply>  <plus />  <ci> k </ci>  <apply>  <times />  <cn type='integer'> -1 </cn>  <ci> m </ci>  </apply>  </apply>  </apply>  <apply>  <factorial />  <apply>  <plus />  <ci> m </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  <apply>  <times />  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 2 </cn>  </apply>  </bvar>  <lowlimit>  <apply>  <plus />  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  </bvar>  <lowlimit>  <cn type='integer'> 1 </cn>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <times />  <ci> … </ci>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <ci> m 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<apply>  <plus />  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  </bvar>  <lowlimit>  <cn type='integer'> 1 </cn>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <times />  <ci> … </ci>  <apply>  <product />  <bvar>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <ci> m </ci>  </apply>  </bvar>  <lowlimit>  <apply>  <plus />  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <apply>  <plus />  <ci> m </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </lowlimit>  <uplimit>  <ci> k </ci>  </uplimit>  <apply>  <lcm />  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 1 </cn>  </apply>  </apply>  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <cn type='integer'> 2 </cn>  </apply>  </apply>  <ci> … </ci>  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <apply>  <ci> Subscript </ci>  <ci> j </ci>  <ci> m </ci>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  <apply>  <and />  <apply>  <in />  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <cn type='integer'> 1 </cn>  </apply>  <apply>  <ci> SuperPlus </ci>  <ci> ℕ </ci>  </apply>  </apply>  <apply>  <in />  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <cn type='integer'> 2 </cn>  </apply>  <apply>  <ci> SuperPlus </ci>  <ci> ℕ </ci>  </apply>  </apply>  <ci> … </ci>  <apply>  <in />  <apply>  <ci> Subscript </ci>  <ci> n </ci>  <ci> k </ci>  </apply>  <apply>  <ci> SuperPlus </ci>  <ci> ℕ </ci>  </apply>  </apply>  <apply>  <in />  <ci> k </ci>  <apply>  <ci> SuperPlus </ci>  <ci> ℕ </ci>  </apply>  </apply>  <apply>  <in />  <ci> m </ci>  <apply>  <ci> SuperPlus </ci>  <ci> ℕ </ci>  </apply>  </apply>  <apply>  <leq />  <cn type='integer'> 1 </cn>  <ci> m </ci>  <ci> k </ci>  </apply>  </apply>  </apply>  </annotation-xml>  </semantics>  </math> 
   
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