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 A377575 #9 Nov 02 2024 09:11:30
%S A377575 1,3,30,483,11100,334035,12478698,558058179,29104042152,1735547479587,
%T A377575 116539815603630,8704631976941043,716019297815418732,
%U A377575 64326542671867079955,6267631435921525638738,658359915933162131600355,74168964857766293453918928,8921104769819780822122624323
%N A377575 E.g.f. satisfies A(x) = (1 + x * exp(x) * A(x))^3.
%F A377575 E.g.f.: B(x)^3, where B(x) is the e.g.f. of A364983.
%F A377575 a(n) = n! * Sum_{k=0..n} k^(n-k) * binomial(3*k+3,k)/( (k+1)*(n-k)! ).
%o A377575 (PARI) a(n) = n!*sum(k=0, n, k^(n-k)*binomial(3*k+3, k)/((k+1)*(n-k)!));
%Y A377575 Cf. A006153, A377574, A377576.
%Y A377575 Cf. A364983, A377554.
%K A377575 nonn
%O A377575 0,2
%A A377575 _Seiichi Manyama_, Nov 02 2024