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 A023602 #3 Mar 30 2012 18:55:53 %S A023602 1,3,5,10,15,20,29,37,47,58,70,85,100,116,134,153,173,195,219,244,268, %T A023602 296,324,354,387,419,454,489,526,564,603,645,689,734,779,825,874,923, %U A023602 973,1028,1082,1138,1196,1253,1313,1375,1436,1501,1567,1635 %N A023602 Convolution of A023532 and A000201. %K A023602 nonn %O A023602 1,2 %A A023602 _Clark Kimberling_