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 A068357 #4 May 11 2007 03:00:00 %S A068357 367,919,30593,95393,117571,124759,147341,197261,334541,344417,463219 %N A068357 Duplicate of A067891. %K A068357 dead %O A068357 1,1