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 A057385 #7 Mar 30 2012 16:48:52 %S A057385 1,0,0,0,0,0,2,0,0,0,6,6,-8,0,36,36,-42,-60,272,330,-402,-554,1758, %T A057385 3564,-3320,-7056,14616,33426,-21498,-83640,111856,354612,-158802, %U A057385 -884208,758088,3744582,-734260,-9805608,4839270,38734736,2364180 %N A057385 Low-temperature partition function expansion for hexagonal lattice (Potts model, q=3). %C A057385 The hexagonal lattice is the familiar 2-dimensional lattice in which each point has 6 neighbors. This is sometimes called the triangular lattice. %H A057385 I. Jensen, <a href="/A057385/b057385.txt">Table of n, a(n) for n = 0..69</a> (from link below) %H A057385 I. Jensen, <a href="http://www.ms.unimelb.edu.au/~iwan/potts/series/trp3pf.ser">More terms</a> %H A057385 G. Nebe and N. J. A. Sloane, <a href="http://www.math.rwth-aachen.de/~Gabriele.Nebe/LATTICES/A2.html">Home page for hexagonal (or triangular) lattice A2</a> %Y A057385 Cf. A057374-A057405. %K A057385 sign %O A057385 0,7 %A A057385 _N. J. A. Sloane_, Aug 30 2000