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 A108805 #3 Mar 30 2012 16:50:18 %S A108805 0,0,1,2,1,2,2,0,3,0,2,2,0,2,3,0,3,0,2,2,2,2,1,0,2,0,3,2,1,2,2,0,3,0, %T A108805 2,2,2,2,1,0,0,0,1,2,3,2,0,0,2,0,3,2,3,2,0,0,3,0,2,2,0,2,3,0,3,0,2,2, %U A108805 2,2,1,0,0,0,1,2,3,2,0,0,0,0,1,2,1,2,2,0,1,0,0,2 %N A108805 A108804 read mod 4. %K A108805 nonn %O A108805 0,4 %A A108805 _N. J. A. Sloane_, Jul 09 2005