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Theta series of D_17 lattice.
2

%I #12 Oct 16 2018 10:08:15

%S 1,544,38114,808384,7213984,37569728,149405248,470966912,1291650786,

%T 3101265120,6883061184,13967503552,27036220096,48877735232,

%U 85898222336,142979339392,233808578464,365627715968,565633846434,841764350272,1246798917056,1783384909696,2547362852288

%N Theta series of D_17 lattice.

%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 118.

%H Seiichi Manyama, <a href="/A022048/b022048.txt">Table of n, a(n) for n = 0..1000</a>

%t terms = 18; f[q_] = LatticeData["D17", "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