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 A084657 #5 Mar 31 2012 14:47:13 %S A084657 0,1,1,1,1,3,2,4,8,10,16,34,51,99,198 %N A084657 Number of unlabeled 2-connected claw-free cubic graphs on 2n vertices. %H A084657 Gordon Royle, <a href="http://www.csse.uwa.edu.au/~gordon/data.html">Combinatorial Data</a> %Y A084657 Cf. A084657, A058929. %K A084657 nonn %O A084657 1,6 %A A084657 _Gordon F. Royle_, Jun 02 2003