A022048 Theta series of D_17 lattice.

1, 544, 38114, 808384, 7213984, 37569728, 149405248, 470966912, 1291650786, 3101265120, 6883061184, 13967503552, 27036220096, 48877735232, 85898222336, 142979339392, 233808578464, 365627715968, 565633846434, 841764350272, 1246798917056, 1783384909696, 2547362852288

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

References

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

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..1000

Programs

Mathematica

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 *)

Extensions

More terms from Seiichi Manyama, Oct 16 2018