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 A068198 #4 May 11 2007 03:00:00 %S A068198 6,10,14,21,22,26,34,38,39,46,55,57,58,62,74,82,86,93,94,106,111,118 %N A068198 Duplicate of A064899. %K A068198 dead %O A068198 1,1