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 A355214 #13 Jun 25 2022 07:12:56
%S A355214 1,1,1,0,-8,-64,-600,-14104,-1170120,-248815984,-115219852880,
%T A355214 -111345726833056,-220485042541083808,-885633596688107274496,
%U A355214 -7173767949430448755993856,-116777715174661360994951467008,-3812515511649504447203183936705536
%N A355214 E.g.f. A(x) satisfies A'(x) = 1 + A(2 * log(1+x))/2.
%H A355214 Seiichi Manyama, <a href="/A355214/b355214.txt">Table of n, a(n) for n = 1..83</a>
%F A355214 a(1) = 1; a(n+1) = Sum_{k=1..n} 2^(k-1) * Stirling1(n,k) * a(k).
%o A355214 (PARI) a_vector(n) = my(v=vector(n)); v[1]=1; for(i=1, n-1, v[i+1]=sum(j=1, i, 2^(j-1)*stirling(i, j, 1)*v[j])); v;
%Y A355214 Cf. A355120, A355208.
%K A355214 sign
%O A355214 1,5
%A A355214 _Seiichi Manyama_, Jun 24 2022