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 A067638 #3 Mar 30 2012 16:49:18 %S A067638 42,1504,37100,784672,15294006,283730240,5095814988 %N A067638 Row 3 of table in A067640. %H A067638 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 A067638 nonn %O A067638 0,1 %A A067638 _N. J. A. Sloane_, Feb 05 2002