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%I #12 Oct 16 2018 12:00:36
%S 1,1404,280854,19014840,581257404,9436118328,93086496360,638406025200,
%T 3387901252374,14765641285044,55108831380408,181434042582840,
%U 538265644820280,1464212332875816,3696677780664960,8759016189382896,19620550996489404,41872709357187696
%N Theta series of D_27 lattice.
%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 118.
%H Seiichi Manyama, <a href="/A022058/b022058.txt">Table of n, a(n) for n = 0..1000</a>
%t terms = 15; f[q_] = LatticeData["D27", "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