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 A082016 #2 Feb 27 2009 03:00:00 %S A082016 1,2,4,3,5,7,6,8,9,13,10,11,12,14,18,15,16,17,19,20,21,22,23,24,25,26 %N A082016 Duplicate of A074135. %K A082016 dead %O A082016 1,2