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 A057393 #5 Mar 30 2012 16:48:52 %S A057393 1,0,0,4,6,18,46,132,408,1254,4110,13440,46420,160428,572706,2057252, %T A057393 7544784,27882252,104455308,394319118,1503100560,5768874688, %U A057393 22304692368,86749353342,339380104380,1334443604172,5272470030306 %N A057393 Low-temperature partition function expansion for honeycomb net (Potts model, q=3). %H A057393 I. Jensen, <a href="/A057393/b057393.txt">Table of n, a(n) for n = 0..35</a> (from link below) %H A057393 I. Jensen, <a href="http://www.ms.unimelb.edu.au/~iwan/potts/series/hcp3pf.ser">More terms</a> %Y A057393 Cf. A057374-A057405. %K A057393 nonn %O A057393 0,4 %A A057393 _N. J. A. Sloane_, Aug 30 2000