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 A030502 #4 Mar 30 2012 18:56:18 %S A030502 1,3,4,5,7,10,12,13,16,17,19,21,24,25,27,28,31,32,35,37,38,40,43,47, %T A030502 50,52,53,57,60,61,63,67,69,72,73,77,79,80,83,87,88,91,93,97,98,100, %U A030502 103,106,110,112,113,116,120,121,123,126,128,132 %N A030502 n-th partial sum of A030496. %K A030502 nonn %O A030502 1,2 %A A030502 _Clark Kimberling_