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 A366729 #26 Nov 08 2023 07:50:48
%S A366729 1,1,1,-4,-36,14,3100,22112,-374640,-9520320,9674808,4085208192,
%T A366729 55207595520,-1640647901088,-69445046214336,103240707929088,
%U A366729 71686341699216384,1439635203885275136,-60449514895261440000,-3608840044036879934976
%N A366729 E.g.f. satisfies A(x) = 1 + log(1 + x*A(x)^2)/A(x).
%F A366729 a(n) = Sum_{k=0..n} (2*n-k)!/(2*n-2*k+1)! * Stirling1(n,k).
%o A366729 (PARI) a(n) = sum(k=0, n, (2*n-k)!/(2*n-2*k+1)!*stirling(n, k, 1));
%Y A366729 Cf. A185221, A367179.
%Y A366729 Cf. A365438, A367180.
%K A366729 sign
%O A366729 0,4
%A A366729 _Seiichi Manyama_, Nov 08 2023