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 A068879 #6 Jun 01 2010 03:00:00 %S A068879 1,4,9,16,25,36,49,81,121,169,256,361,529,676,729,961,1296,4761,5476 %N A068879 Duplicate of A030152. %K A068879 dead %O A068879 1,2