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 A084658 #5 Mar 31 2012 14:47:13 %S A084658 0,1,1,0,0,1,0,0,2,0,0,4,0,0,14 %N A084658 Number of unlabeled 3-connected claw-free cubic graphs on 2n vertices. %H A084658 Gordon Royle, <a href="http://www.csse.uwa.edu.au/~gordon/data.html">Combinatorial Data</a> %Y A084658 Cf. A084657, A058931. %K A084658 nonn %O A084658 1,9 %A A084658 _Gordon F. Royle_, Jun 02 2003