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 A379201 #6 Dec 20 2024 23:38:32
%S A379201 1,4,13,40,130,472,1863,7536,30144,118420,460746,1795688,7059729,
%T A379201 28023636,111978480,448799712,1800225540,7223348112,29006342666,
%U A379201 116643481440,469861180529,1895748851480,7658862165738,30973386496992,125363177936450,507777786429164,2058225234116544
%N A379201 Column 1 of triangle A379200; a(n) = A379200(n,1) for n >= 2.
%C A379201 G.f. G(x,y) of triangle A379200 satisfies 1/x = Sum_{n=-oo..+oo} G(x,y)^n * (G(x,y)^n + y)^(n+1). This sequence gives the coefficients of x^n*y in G(x,y) for n >= 2.
%H A379201 Paul D. Hanna, <a href="/A379201/b379201.txt">Table of n, a(n) for n = 2..101</a>
%Y A379201 Cf. A379200.
%K A379201 nonn
%O A379201 2,2
%A A379201 _Paul D. Hanna_, Dec 20 2024