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 A376394 #11 Sep 22 2024 11:15:37
%S A376394 1,2,20,388,11382,449868,22427988,1351746912,95626268208,
%T A376394 7769995319280,713229439560816,73000860715645344,8243857485642410400,
%U A376394 1018250616169754862048,136561871538665054975520,19763248903874313555142656,3069876028020976768409255808,509447295061343606934940250880
%N A376394 Expansion of e.g.f. ( (1/x) * Series_Reversion( x*(1 + log(1-x))^3 ) )^(2/3).
%H A376394 <a href="/index/Res#revert">Index entries for reversions of series</a>
%F A376394 E.g.f.: B(x)^2, where B(x) is the e.g.f. of A367139.
%F A376394 a(n) = (2/(3*n+2)!) * Sum_{k=0..n} (3*n+k+1)! * |Stirling1(n,k)|.
%o A376394 (PARI) my(N=20, x='x+O('x^N)); Vec(serlaplace((serreverse(x*(1+log(1-x))^3)/x)^(2/3)))
%o A376394 (PARI) a(n) = 2*sum(k=0, n, (3*n+k+1)!*abs(stirling(n, k, 1)))/(3*n+2)!;
%Y A376394 Cf. A367139, A376393.
%K A376394 nonn
%O A376394 0,2
%A A376394 _Seiichi Manyama_, Sep 22 2024