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 A066965 #3 May 11 2007 03:00:00 %S A066965 0,2,2,10,12,30,40,82,110,190,260,422,570,860,1160,1690,2252,3170,4190 %N A066965 Duplicate of A066966. %K A066965 dead %O A066965 1,2