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 A377504 #10 Oct 31 2024 06:47:58
%S A377504 1,3,36,735,21972,871995,43308378,2588123811,180990517032,
%T A377504 14507325973395,1311719669172750,132102208441613883,
%U A377504 14666354372331521676,1779817542971018697003,234399632982398657764578,33297612755940733707395955,5075234637265322738651060688,826215756199826873368252279971
%N A377504 E.g.f. satisfies A(x) = 1/(1 - x * exp(x) * A(x))^3.
%F A377504 E.g.f.: B(x)^3, where B(x) is the e.g.f. of A364987.
%F A377504 a(n) = n! * Sum_{k=0..n} k^(n-k) * binomial(4*k+2,k)/( (k+1)*(n-k)! ).
%o A377504 (PARI) a(n) = n!*sum(k=0, n, k^(n-k)*binomial(4*k+2, k)/((k+1)*(n-k)!));
%Y A377504 Cf. A295238, A377503, A377528.
%Y A377504 Cf. A006632, A364987.
%K A377504 nonn
%O A377504 0,2
%A A377504 _Seiichi Manyama_, Oct 30 2024