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 A371297 #8 Mar 18 2024 09:52:13
%S A371297 1,2,26,676,26852,1443888,98183024,8083614880,781958648448,
%T A371297 86940057459840,10925288128027968,1531414930604605440,
%U A371297 236905910564035082112,40093453025252047368192,7368774639911257328778240,1461607086204159742139338752,311206233406111454756938844160
%N A371297 E.g.f. satisfies A(x) = 1/(1 + 2*log(1 - x*A(x)^2)).
%F A371297 a(n) = (1/(2*n+1)!) * Sum_{k=0..n} 2^k * (2*n+k)! * |Stirling1(n,k)|.
%o A371297 (PARI) a(n) = sum(k=0, n, 2^k*(2*n+k)!*abs(stirling(n, k, 1)))/(2*n+1)!;
%Y A371297 Cf. A088500, A370941.
%Y A371297 Cf. A367138.
%K A371297 nonn
%O A371297 0,2
%A A371297 _Seiichi Manyama_, Mar 18 2024