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 A057384 #8 Mar 30 2012 16:48:52 %S A057384 72,0,0,0,600,726,-1440,0,7056,8100,-13824,-20808,94176,119130, %T A057384 -196800,-291942,917664,1986924,-2389248,-5092500,10788960,26041338, %U A057384 -21643104,-81270876,111771360,369058596,-215519232,-1109316384 %N A057384 Low-temperature specific heat expansion for hexagonal lattice (Potts model, q=3). %C A057384 The hexagonal lattice is the familiar 2-dimensional lattice in which each point has 6 neighbors. This is sometimes called the triangular lattice. %H A057384 I. Jensen, <a href="/A057384/b057384.txt">Table of n, a(n) for n = 0..63</a> (from link below) %H A057384 I. Jensen, <a href="http://www.ms.unimelb.edu.au/~iwan/potts/series/trp3sh.ser">More terms</a> %H A057384 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> %H A057384 <a href="/index/Sp#specific_heat">Index entries for sequences related to specific heat</a> %Y A057384 Cf. A057374-A057405. %K A057384 sign %O A057384 0,1 %A A057384 _N. J. A. Sloane_, Aug 30 2000