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 A141008 #11 Oct 17 2017 14:33:36
%S A141008 1,6,64,930,16780,356922,8681380,236739354,7135453180,235079261562,
%T A141008 8389974421012,322019941283514,13211434169884204,576435716324437722,
%U A141008 26631611751773999044,1297943388416061780186
%N A141008 E.g.f. exp(sum_{d|M} (exp(d*x)-1)/d), M=12.
%H A141008 Vincenzo Librandi, <a href="/A141008/b141008.txt">Table of n, a(n) for n = 0..200</a>
%t A141008 u[0, j_]: = 1; u[k_, j_]: = u[k, j] = Sum[Binomial[k-1, i-1]Plus@@(u[k-i, j]#^(i-1)&/@Divisors[j]), {i, k}]; Table[u[n, 12], {n, 0, 30}] (* _Vincenzo Librandi_, Dec 12 2012 *)
%Y A141008 Column k=12 of A162663.
%K A141008 nonn
%O A141008 0,2
%A A141008 _R. J. Mathar_, Jul 11 2008