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 A076222 #3 Mar 30 2012 17:21:00 %S A076222 1,1,1,2,2,4,4,4,4,6,6,6,6,6,8,9,9,9,9,9,8,11,11,11,11,12,11,12,12,13, %T A076222 13,13,15,15,16,17,17,17,17,17,17,18,18,20,20,20,20,20,19,18,19,19,19, %U A076222 19,24,23,24,24,24,24,24,24,24,24,21,25,25,27,27,28,28,28,28,28,28,28 %N A076222 Number of different values in n-th row of A076221. %K A076222 nonn %O A076222 1,4 %A A076222 _Olivier Gérard_