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 A067643 #3 Mar 30 2012 16:49:18 %S A067643 70,2352,47820,784672,11515714,158295072,2086803540,26737722400, %T A067643 335676172480,4150940757440,50739269522864,614607881444256, %U A067643 7390867767651290 %N A067643 Column 3 of table in A067640. %H A067643 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 A067643 nonn %O A067643 0,1 %A A067643 _N. J. A. Sloane_, Feb 05 2002