%I #12 Oct 16 2018 07:56:11
%S 1,1860,503502,47229864,2046701220,47775740520,671636175480,
%T 6309132101904,43733123309262,241275541236780,1111479953165352,
%U 4426891212365160,15633379938039144,49899492947343864,146147632445771200,397406328481552528,1013148957319630500,2440161908107807952
%N Theta series of D_31 lattice.
%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 118.
%H Seiichi Manyama, <a href="/A022062/b022062.txt">Table of n, a(n) for n = 0..10000</a>
%t terms = 14; f[q_] = LatticeData["D31", "ThetaSeriesFunction"][-I*Log[q]/Pi]; s = f[q] + O[q]^(2 terms); DeleteCases[CoefficientList[s, q], 0][[1 ;; terms]] (* _Jean-François Alcover_, Jul 06 2017 *)
%K nonn
%O 0,2
%A _N. J. A. Sloane_
%E More terms from _Seiichi Manyama_, Oct 16 2018