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 A088219 #2 Apr 30 2014 01:37:33 %S A088219 1,1,1,2,2,6,12,29,64,114,404,641,2637,3289,15853,22068,98168,164238, %T A088219 547111,1292502,3020056,10442124,15954682,79385179,89229089,576106142, %U A088219 595912173,3848976774,4853522881,23699101223,44768315427,132700765034 %N A088219 Coefficient of x^n in g.f.^n is A086608(n). %K A088219 nonn %O A088219 0,4 %A A088219 _Michael Somos_, Sep 24 2003