MoebiusMu[31] == -1
Cell[BoxData[RowBox[List[RowBox[List["MoebiusMu", "[", "31", "]"]], "\[Equal]", RowBox[List["-", "1"]]]]]]
<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <mi> μ </mi> <mo> ⁡ </mo> <mo> ( </mo> <mn> 31 </mn> <mo> ) </mo> </mrow> <mo> ⩵ </mo> <mrow> <mo> - </mo> <mn> 1 </mn> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <eq /> <apply> <ci> μ </ci> <cn type='integer'> 31 </cn> </apply> <cn type='integer'> -1 </cn> </apply> </annotation-xml> </semantics> </math>
Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["MoebiusMu", "[", "31", "]"]], "]"]], "\[RuleDelayed]", RowBox[List["-", "1"]]]]]]
2001-10-29