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 A218880 #5 Apr 10 2013 18:50:27 %S A218880 0,0,0,0,1,0,0,0,2,1,2,0,95,31,104,13,31198,10838 %N A218880 Number of hypohamiltonian snarks of order 2n. %H A218880 Gunnar Brinkmann, Jan Goedgebeur, Jonas Hagglund and Klas Markstrom, <a href="http://arxiv.org/abs/1206.6690">Generation and properties of snarks</a>, arXiv:1206.6690, 2012. %K A218880 nonn %O A218880 1,9 %A A218880 _N. J. A. Sloane_, Nov 26 2012