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 A024852 #3 May 11 2007 03:00:00 %S A024852 2,3,10,13,28,34,60,70,110,125,182,203,280,308,408,444,570,615,770,825 %N A024852 Duplicate of A023856. %K A024852 dead %O A024852 2,1