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 A370151 #7 Feb 11 2024 03:53:42
%S A370151 1,0,9,-6,54,-54,264,-324,1127,-1534,4338,-6274,15372,-22986,50846,
%T A370151 -77448,158599,-243696,470206,-724576,1333275,-2052498,3634077,
%U A370151 -5575498,9561408,-14596950,24368133,-36983308,60336459,-90983536,145510968,-217948138,342546543,-509567136,788639494
%N A370151 Column 1 of triangle A370040.
%C A370151 The g.f. of triangle A370040, F(x,y), satisfies Sum_{n=-oo..+oo} (-1)^n * (x^n + y*F(x,y))^n = 1 + (y+2)*Sum_{n>=1} (-1)^n * x^(n^2).
%H A370151 Paul D. Hanna, <a href="/A370151/b370151.txt">Table of n, a(n) for n = 2..202</a>
%F A370151 a(n) = A370040(n,1) for n >= 2.
%Y A370151 Cf. A370040, A370150, A370151, A370152.
%K A370151 sign
%O A370151 2,3
%A A370151 _Paul D. Hanna_, Feb 10 2024