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 A293018 #16 Oct 03 2017 06:25:27
%S A293018 1,0,0,0,-24,-120,-360,-840,18480,359856,3623760,26603280,79821720,
%T A293018 -2283258120,-61509151704,-964150419960,-10830864888480,
%U A293018 -60512343148320,1054627338811680,45270062235647136,995044394226238920,15575041436469437160
%N A293018 E.g.f.: exp(-x^4 * exp(x)).
%H A293018 Seiichi Manyama, <a href="/A293018/b293018.txt">Table of n, a(n) for n = 0..491</a>
%p A293018 with(PolynomialTools):
%p A293018 seq(k!coeftayl(exp(-x^4*exp(x)), x = 0, k),k=0..50); # _Muniru A Asiru_, Oct 01 2017
%o A293018 (PARI) x='x+O('x^66); Vec(serlaplace(exp(-x^4*exp(x))))
%Y A293018 Column k=4 of A293019.
%K A293018 sign
%O A293018 0,5
%A A293018 _Seiichi Manyama_, Sep 28 2017
%E A293018 Name corrected by _Muniru A Asiru_, Oct 01 2017