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 A082338 #4 May 11 2007 03:00:00 %S A082338 0,1,2,3,4,5,7,6,8,9,10,11,12,13,17,18,16,14,15,20,21,19,22,23,24,25, %T A082338 26 %N A082338 Duplicate of A069776. %K A082338 dead %O A082338 0,3