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 A367200 #12 Nov 10 2023 08:18:49
%S A367200 1,1,10,201,6216,261300,13923762,899679144,68368215528,5975493315264,
%T A367200 590584798045440,65132133511182408,7929604511136220536,
%U A367200 1056369806709005923992,152854816585283562807288,23873492748049623945947160,4002988479012229417182249408
%N A367200 E.g.f. satisfies A(x) = 1/(1 - x*A(x))^(A(x)^3).
%F A367200 a(n) = Sum_{k=0..n} (n+3*k+1)^(k-1) * |Stirling1(n,k)|.
%o A367200 (PARI) a(n) = sum(k=0, n, (n+3*k+1)^(k-1)*abs(stirling(n, k, 1)));
%Y A367200 Cf. A264408, A367160.
%Y A367200 Cf. A349556, A355766.
%Y A367200 Cf. A367199, A367201.
%K A367200 nonn
%O A367200 0,3
%A A367200 _Seiichi Manyama_, Nov 10 2023