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 A093435 #3 Nov 10 2007 03:00:00 %S A093435 2,3,5,6,7,8,10,11,12,14,15,16,17,19,20,21,23,24,25,27,28,29,31,32,33 %N A093435 Duplicate of A048964. %K A093435 dead %O A093435 1,1