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 A365011 #8 Aug 16 2023 08:19:58
%S A365011 1,1,6,87,1964,60325,2349114,110922091,6159510552,393373489257,
%T A365011 28407518470070,2289019332293551,203608076603605860,
%U A365011 19816972252710998989,2094926215725519979698,239037380421621120397395,29281119335188021375533104,3832665229749097186190010193
%N A365011 E.g.f. satisfies A(x) = 1 + x*exp(-x)*A(x)^4.
%F A365011 a(n) = n! * Sum_{k=0..n} (-k)^(n-k) * A002293(k)/(n-k)!.
%o A365011 (PARI) a(n) = n!*sum(k=0, n, (-k)^(n-k)*binomial(4*k, k)/((3*k+1)*(n-k)!));
%Y A365011 Cf. A295239, A302397, A365010.
%Y A365011 Cf. A002293, A364987.
%K A365011 nonn
%O A365011 0,3
%A A365011 _Seiichi Manyama_, Aug 15 2023