A176840 Variant of A176546 with the sign of the second term switched.
1, -1, 1, -1, 1, -1, 5, -691, 7, -3617, 43867, -174611, 854513
Offset: 0
Crossrefs
Cf. A027641.
Formula
a(n)=A176546(n), n>1.
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
Comments