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  For fixed z and a=4, b>=a
  For fixed z and a=4, b=4 For fixed z and a=4, b=33/8 For fixed z and a=4, b=35/8 For fixed z and a=4, b=37/8 For fixed z and a=4, b=39/8 For fixed z and a=4, b=5 For fixed z and a=4, b=41/8 For fixed z and a=4, b=43/8 For fixed z and a=4, b=45/8 For fixed z and a=4, b=47/8 For fixed z and a=4, b=6 |