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 A377424 #7 Oct 28 2024 09:32:15
%S A377424 1,1,11,253,9019,438021,26992707,2018069341,177498369419,
%T A377424 17959376607061,2055112480694323,262437681414074541,
%U A377424 36999068388057870651,5708040382071000644581,956533539112835413864739,173022072326584494697760893,33600521994423195247370822251,6972639514725247888782370422261
%N A377424 E.g.f. satisfies A(x) = 1/(2 - exp(x*A(x)^4)).
%F A377424 a(n) = (1/(4*n+1)!) * Sum_{k=0..n} (4*n+k)! * Stirling2(n,k).
%o A377424 (PARI) a(n) = sum(k=0, n, (4*n+k)!*stirling(n, k, 2))/(4*n+1)!;
%Y A377424 Cf. A000670, A052894, A367134, A367135.
%Y A377424 Cf. A377425, A377428.
%K A377424 nonn
%O A377424 0,3
%A A377424 _Seiichi Manyama_, Oct 28 2024