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.
%I A292162 #10 Sep 10 2017 15:02:38
%S A292162 0,-1,-2,24,60,245,642,1365,2552,5094,-92010,-147752,-476940,-1083134,
%T A292162 -2645230,-5251515,-10399760,-18340246,-33854778,-56744526,-95736020,
%U A292162 1650319440,2252563082,6443314668,13202694120,29698078100,55023636486,113357565936
%N A292162 Main diagonal of A292160.
%F A292162 A292161(n) + i*a(n) = [x^n] Product_{k>=0} (1 - n*i*x^k), where i is sqrt(-1).
%Y A292162 Cf. A292161.
%K A292162 sign
%O A292162 0,3
%A A292162 _Seiichi Manyama_, Sep 10 2017