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 A074099 #3 May 11 2007 03:00:00 %S A074099 1,1,1,2,3,5,9,16,28,51,93,170,315,585,1092,2048,3855,7281,13797, %T A074099 26214,49932 %N A074099 Duplicate of A006788. %K A074099 dead %O A074099 1,4