1,2

a(n) = (-1)^[(n-1)/2] * n^n = (-1)^[(n-1)/2] * A000312(n)

Cf. A000312, A004124.

Sequence in context: A051863 A000699 A138423 this_sequence A086756 A061510 A045512

Adjacent sequences: A086780 A086781 A086782 this_sequence A086784 A086785 A086786

sign

Yuval Dekel (dekelyuval(AT)hotmail.com), Aug 03 2003