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 A124555 #5 Mar 13 2015 22:41:46 %S A124555 1,5,40,385,4345,57876,926340,18088835,434349525,12879458545, %T A124555 473368667181,21628231535280,1231043822730950,87448787189791250, %U A124555 7764880712865963895,862911010853538242176,120154448960730327164325 %N A124555 Row 5 of table A124550; also equals the self-convolution 5th power of A124565, which is row 5 of table A124560. %C A124555 In table A124550, the g.f. of row n, R_n(y), simultaneously satisfies: R_n(y) = [ Sum_{k>=0} y^k * R_{n*k}(y) ]^n for n>=0. %F A124555 G.f.: A(x) = [ Sum_{k>=0} y^k * R_{5k}(y) ]^5, where R_n(x) is the g.f. of row n in table A124550. %Y A124555 Cf. A124550; other rows: A124551, A124552, A124553, A124554, A124556. %K A124555 nonn %O A124555 0,2 %A A124555 _Paul D. Hanna_, Nov 07 2006