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 A292979 #18 Jul 10 2022 09:41:19
%S A292979 1,0,0,0,24,120,360,840,21840,365904,3633840,26619120,239512680,
%T A292979 3943797000,69258333144,997361197560,12707273822880,179576670930720,
%U A292979 3215428464641760,62865157116396384,1167555972633639480,20756362432008412440,386561667091927394760
%N A292979 Expansion of e.g.f. exp(x^4 * exp(x)).
%H A292979 Seiichi Manyama, <a href="/A292979/b292979.txt">Table of n, a(n) for n = 0..487</a>
%F A292979 a(n) = (-1)^n * A292969(n).
%F A292979 a(n) = n! * Sum_{k=0..floor(n/4)} k^(n-4*k)/(k! * (n-4*k)!). - _Seiichi Manyama_, Jul 10 2022
%o A292979 (PARI) x='x+O('x^66); Vec(serlaplace(exp(x^4*exp(x))))
%o A292979 (PARI) a(n) = n!*sum(k=0, n\4, k^(n-4*k)/(k!*(n-4*k)!)); \\ _Seiichi Manyama_, Jul 10 2022
%Y A292979 Column k=4 of A292978.
%Y A292979 Cf. A292969.
%K A292979 nonn
%O A292979 0,5
%A A292979 _Seiichi Manyama_, Sep 27 2017