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 A371122 #8 Mar 11 2024 08:29:58
%S A371122 1,0,2,3,104,570,19284,220500,7975008,148889664,5911249680,
%T A371122 157016471040,6913129099392,239681708117280,11734594390915200,
%U A371122 501510627153244800,27265653826293749760,1380895751066249779200,83060557136719693406208
%N A371122 E.g.f. satisfies A(x) = 1 - x*A(x)^3*log(1 - x*A(x)).
%F A371122 a(n) = n! * Sum_{k=0..floor(n/2)} (n+2*k)! * |Stirling1(n-k,k)|/( (n-k)! * (n+k+1)! ).
%o A371122 (PARI) a(n) = n!*sum(k=0, n\2, (n+2*k)!*abs(stirling(n-k, k, 1))/((n-k)!*(n+k+1)!));
%Y A371122 Cf. A370993, A371117, A371121.
%Y A371122 Cf. A371120.
%K A371122 nonn
%O A371122 0,3
%A A371122 _Seiichi Manyama_, Mar 11 2024