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 A367153 #11 Nov 07 2023 08:27:27
%S A367153 1,1,3,13,55,-59,-8869,-230019,-4735569,-81845819,-925266221,
%T A367153 11304277117,1342388191079,64570153427781,2378028350945547,
%U A367153 68237841920780221,1044508709568828511,-45901762542718407035,-5887687395597254917885,-396339747040666473203907
%N A367153 E.g.f. satisfies A(x) = 2 - exp(-x*A(x)^2).
%F A367153 a(n) = (2*n)! * Sum_{k=0..n} (-1)^(n-k) * Stirling2(n,k)/(2*n-k+1)!.
%o A367153 (PARI) a(n) = (2*n)!*sum(k=0, n, (-1)^(n-k)*stirling(n, k, 2)/(2*n-k+1)!);
%Y A367153 Cf. A097718, A367154.
%Y A367153 Cf. A367078, A367080.
%K A367153 sign
%O A367153 0,3
%A A367153 _Seiichi Manyama_, Nov 07 2023