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%I #12 Oct 16 2018 12:00:06
%S 1,924,117084,4812192,86075484,815677016,5012882336,23460347328,
%T 89096422492,289559673084,830202403800,2153312518240,5140361517984,
%U 11444537517336,24015334687168,47873378766400,91281903219804,167369436673208,296418599695548,509007239863584
%N Theta series of D_22 lattice.
%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 118.
%H Seiichi Manyama, <a href="/A022053/b022053.txt">Table of n, a(n) for n = 0..1000</a>
%t terms = 17; f[q_] = LatticeData["D22", "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