cp's OEIS Frontend

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.

A368776 a(n) = (n+1)^2 * (n!)^3 * Sum_{k=0..n} 1/((k+1)^2 * (k!)^3).

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%I A368776 #10 Jan 05 2024 07:56:57
%S A368776 1,5,91,4369,436901,78642181,23120801215,10358118944321,
%T A368776 6712061075920009,6040854968328008101,7309434511676889802211,
%U A368776 11578144266496193446702225,23480476572454280309912112301,59828254306613506229656062142949
%N A368776 a(n) = (n+1)^2 * (n!)^3 * Sum_{k=0..n} 1/((k+1)^2 * (k!)^3).
%F A368776 a(n) = (n+1)^2 * n * a(n-1) + 1.
%o A368776 (PARI) a(n) = (n+1)^2*n!^3*sum(k=0, n, 1/((k+1)^2*k!^3));
%Y A368776 Cf. A217284, A368775.
%Y A368776 Cf. A368770.
%K A368776 nonn
%O A368776 0,2
%A A368776 _Seiichi Manyama_, Jan 05 2024