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 A059660 #2 May 01 2014 02:46:11 %S A059660 3,1,3,2,3,3,1,3,2,3,2,1,3,1,3,4,4,1,3,4,3,2,3,3,4,2,3,3,3,1,3,2,2,1, %T A059660 3,1,3,4,4,1,2,1,3,4,2,3,3,4,3,2,2,1,3,1,3,2,2,1,3,1,3,3,4,2,2,1,3,4, %U A059660 5,2,1,3,1,3,2,3,3,1,3,5,2,1,3,1,3,4,5,3,3,1,3,2,3,3,1,3,2,3,3,3,1,3,4,1,3 %N A059660 First differences of A059659. %K A059660 nonn %O A059660 1,1 %A A059660 _Antti Karttunen_, Feb 03 2001