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 A003697 #9 Feb 27 2009 03:00:00 %S A003697 1,2,9,32,121,450,1681,6272,23409,87362,326041,1216800,4541161, %T A003697 16947842 %N A003697 Duplicate of A006253. %D A003697 F. Faase, On the number of specific spanning subgraphs of the graphs G X P_n, Ars Combin. 49 (1998), 129-154. %H A003697 F. Faase, <a href="http://www.iwriteiam.nl/Cpaper.zip">On the number of specific spanning subgraphs of the graphs G X P_n</a>, Preliminary version of paper that appeared in Ars Combin. 49 (1998), 129-154. %K A003697 dead %O A003697 0,2