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 A294292 #11 May 10 2023 15:10:32
%S A294292 1,-1,1,-7,49,-181,1561,-18691,173377,-2150569,28355761,-356432671,
%T A294292 5780298481,-95621235997,1506345546889,-29605056916891,
%U A294292 624987953076481,-12495650070557521,277892162543608417,-6701525504691986359,160540685175500028721
%N A294292 Expansion of e.g.f. exp(1/((1+x)*(1+x^2)*(1+x^3)*(1+x^4)) - 1).
%H A294292 Seiichi Manyama, <a href="/A294292/b294292.txt">Table of n, a(n) for n = 0..442</a>
%F A294292 E.g.f.: exp(1/((1+x)*(1+x^2)*(1+x^3)*(1+x^4)) - 1).
%o A294292 (PARI) N=66; x='x+O('x^N); Vec(serlaplace(exp(1/((1+x)*(1+x^2)*(1+x^3)*(1+x^4))-1)))
%Y A294292 Column k=4 of A294289.
%K A294292 sign
%O A294292 0,4
%A A294292 _Seiichi Manyama_, Oct 27 2017