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 A067639 #3 Mar 30 2012 16:49:18 %S A067639 260,13300,433620,11515714,271846056,5947557516,123429078160 %N A067639 Row 4 of table in A067640. %H A067639 J. L. Jacobsen and P. Zinn-Justin, <a href="http://arXiv.org/abs/math-ph/0102015">A Transfer Matrix approach to the Enumeration of Knots</a> %K A067639 nonn %O A067639 0,1 %A A067639 _N. J. A. Sloane_, Feb 05 2002