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 A078650 #6 Mar 30 2012 18:39:11 %S A078650 1,0,0,1,1,0,1,0,0,1,0,0,1,1,0,1,1,0,0,1,0,1,1,0,1,0,0,1,1,0,1,1,0,1, %T A078650 0,0,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,1,0,0,1,0,0,1,1,0,1,0,0,1,0,0,1,1, %U A078650 0,1,1,0,1,0,0,1,0,1,1,0,0,1,0,0,1,1,0,1,0,0,1,0,0,1,1,0,1,1,0,0,1,0,1,1,0 %N A078650 2-A000002(n) where A000002 is the Kolakoski sequence. %Y A078650 A049705(n) - 1. %K A078650 nonn %O A078650 1,1 %A A078650 _Benoit Cloitre_, Dec 14 2002