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 A372796 #8 May 13 2024 09:13:56 %S A372796 0,1,2,14,168,2776,56672,1342864,35866368,1089119616,39079100032, %T A372796 1656388518144,73919648645632,2888230034093056,104369370522809344, %U A372796 10598445084195061760,1502420051590162006016,39363517546114295169024,-23019065875812133365235712 %N A372796 E.g.f. A(x) satisfies A(A(A(A(x)))) = (-1/8) * log(1 - 8*x). %F A372796 Define the sequence b(n,m) as follows. If n<m, b(n,m) = 0, else if n=m, b(n,m) = 1, otherwise b(n,m) = 1/4 * ( 8^(n-m) * |Stirling1(n,m)| - Sum_{l=m+1..n-1} (b(n,l) + Sum_{k=l..n} (b(n,k) + Sum_{j=k..n} b(n,j) * b(j,k)) * b(k,l)) * b(l,m) ). a(n) = b(n,1). %Y A372796 Cf. A220112, A372698, A372747. %Y A372796 Cf. A372795. %K A372796 sign %O A372796 0,3 %A A372796 _Seiichi Manyama_, May 13 2024