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 A128328 #3 Mar 30 2012 18:37:03
%S A128328 1,1,5,30,200,1435,10900,86799,720074,6196295,55135043,506125404,
%T A128328 4784680169,46516469860,464550190798,4761343733469,50044839978614,
%U A128328 539051253692777,5946806890025709,67156408547628636,775935817487472046
%N A128328 Row 3 of table A128325.
%F A128328 G.f.: A(x) = 1 + G(G(G(G(G(x))))) = B(G(x)), where B(x) is the g.f. of A128327 and G(x) = x + x*G(G(x)) is the g.f. of A030266.
%o A128328 (PARI) {a(n)=local(A=1+x,B);for(i=0,n,A=1+x*A*subst(A,x,x*A+x*O(x^n))); B=A;for(i=1,3,B=subst(B,x,x*A+x*O(x^n)));polcoeff(B,n)}
%Y A128328 Cf. A030266; A128325 (table), A128326 (row 1), A128327 (row 2), A128329 (main diagonal).
%K A128328 nonn
%O A128328 0,3
%A A128328 _Paul D. Hanna_, Mar 11 2007