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 A189688 #4 Mar 30 2012 18:57:25 %S A189688 0,1,2,2,3,3,4,4,5,6,6,7,7,8,9,9,10,10,11,12,12,13,13,14,14,15,16,16, %T A189688 17,17,18,19,19,20,20,21,21,22,23,23,24,24,25,26,26,27,27,28,28,29,30, %U A189688 30,31,31,32,33,33,34,34,35,36,36,37,37,38,38,39,40,40,41,41,42,43,43,44,44,45,45,46,47,47 %N A189688 Partial sums of A189687. %C A189688 See A189687. %t A189688 (See A189687.) %Y A189688 A189687. %K A189688 nonn %O A189688 1,3 %A A189688 _Clark Kimberling_, Apr 25 2011