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 A084437 #3 Jun 29 2008 03:00:00 %S A084437 0,1,2,4,5,6,7,9,10,11,17,24,29,39,40,57,58,59,91,155,175,245,359,372 %N A084437 Duplicate of A037083. %K A084437 dead %O A084437 1,3