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 A355106 #10 Jun 19 2022 08:41:02 %S A355106 1,2,8,60,704,11640,254736,7071512,241414400,9898632864,478455967200, %T A355106 26853032524912,1728192188667072,126200480666269984, %U A355106 10363161616018802080,949530356895864383280,96418968027002031636480,10785892383962319840160640 %N A355106 E.g.f. A(x) satisfies: A(x) = 1 + 2 * x * A(-log(1-x)). %F A355106 a(0) = 1; a(n) = 2 * n * Sum_{k=0..n-1} |Stirling1(n-1,k)| * a(k). %F A355106 a(n) = 2 * n * A355098(n-1) for n>0. %o A355106 (PARI) a_vector(n) = my(v=vector(n+1)); v[1]=1; for(i=1, n, v[i+1]=2*i*sum(j=0, i-1, abs(stirling(i-1, j, 1))*v[j+1])); v; %Y A355106 Cf. A354730, A355107. %Y A355106 Cf. A355098. %K A355106 nonn %O A355106 0,2 %A A355106 _Seiichi Manyama_, Jun 19 2022