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Main diagonal of A292159.
2

%I #12 Oct 29 2022 15:15:58

%S 1,-1,-4,-18,-32,-75,1188,2205,7936,19278,49500,87120,185760,312988,

%T 574868,-10481175,-15271936,-46022672,-98470404,-230150496,-440484000,

%U -932930208,-1572331596,-2940575576,-4940815104,-8508211250,-13542949524,-22406625648

%N Main diagonal of A292159.

%F a(n) + i*A292162(n) = [x^n] Product_{k>=0} (1 - n*i*x^k), where i is sqrt(-1).

%Y Cf. A292159, A292162.

%K sign

%O 0,3

%A _Seiichi Manyama_, Sep 10 2017