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 A061908 #4 May 11 2007 03:00:00 %S A061908 1,8,10,17,19,26,28,35,37,44,46,53,55,62,64,71,73,80,82,89,91,98,100 %N A061908 Duplicate of A056020. %K A061908 dead %O A061908 1,2