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 A068892 #3 Jul 19 2005 03:00:00 %S A068892 0,1,2,3,4,5,6,7,8,9,11,13,15,17,22,26,31,33,37,39,44,51,55,62,66,71 %N A068892 Incorrect version of A085869. %K A068892 dead %O A068892 0,3