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 A379934 #11 Jan 07 2025 06:54:55
%S A379934 1,4,38,626,15008,476122,18864124,898099526,49988162672,3187006372466,
%T A379934 229091274174404,18335328399262030,1617287276785929928,
%U A379934 155893591123924724618,16304903025947743812476,1839154613521698544945238,222562344165125395485931232,28763041177430039602579211746
%N A379934 E.g.f. A(x) satisfies A(x) = 1/( exp(-x*A(x)) - x )^2.
%F A379934 E.g.f.: B(x)^2, where B(x) is the e.g.f. of A379884.
%F A379934 a(n) = 2 * n! * Sum_{k=0..n} (n+k+2)^(k-1) * binomial(n+k+2,n-k)/k!.
%o A379934 (PARI) a(n) = 2*n!*sum(k=0, n, (n+k+2)^(k-1)*binomial(n+k+2, n-k)/k!);
%Y A379934 Cf. A379933, A379936.
%Y A379934 Cf. A379864, A379884.
%K A379934 nonn
%O A379934 0,2
%A A379934 _Seiichi Manyama_, Jan 06 2025