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 A270294 #14 Mar 21 2016 06:42:17
%S A270294 1,1,2,13,48,381,3120,26923,255696,3158137,40008240,519979791,
%T A270294 7942304040,122856625477,2131578891624,39647280625891,750423985762080,
%U A270294 15134456564892273,334165931467245216,7422976578858122647,177254117413133743800,4454974632071621551741
%N A270294 E.g.f.: Product_{k>=1} (1 + sinh(x^k)).
%H A270294 Vaclav Kotesovec, <a href="/A270294/b270294.txt">Table of n, a(n) for n = 0..440</a>
%t A270294 nmax = 25; Range[0, nmax]!*CoefficientList[Series[Product[1+Sinh[x^k], {k, 1, nmax}], {x, 0, nmax}], x]
%Y A270294 Cf. A000262, A229263, A270662, A270663.
%K A270294 nonn
%O A270294 0,3
%A A270294 _Vaclav Kotesovec_, Mar 21 2016