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 A112346 #19 Nov 13 2014 11:58:20 %S A112346 1,2,5,8,17,26,53,80,161,242,485,728,1457,2186,4373,6560,13121,19682 %N A112346 Duplicate of A062318. %K A112346 dead %O A112346 1,2