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 A108311 #3 May 11 2007 03:00:00 %S A108311 2,5,8,12,15,18,20,30,80,143,152,164,176,239,291,324,504,594,983,2894 %N A108311 Duplicate of A092767. %K A108311 dead %O A108311 1,1