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 A098672 #3 May 11 2007 03:00:00 %S A098672 11,251,1061,1451,1901,1931,2381,3181,3491,3851,4621,4861,5261,6101 %N A098672 Duplicate of A056210. %K A098672 dead %O A098672 1,1