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A022050
Theta series of D_19 lattice.
2
1, 684, 62054, 1759704, 21210156, 140116184, 658369608, 2449182384, 7597766246, 20748447108, 50601708504, 114223115480, 238352317656, 472600643976, 883678139136, 1594639240368, 2749536787500, 4620722631088, 7482364853310, 11894205734280, 18321074279384
OFFSET
0,2
REFERENCES
J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 118.
LINKS
MATHEMATICA
terms = 17; f[q_] = LatticeData["D19", "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 *)
CROSSREFS
Sequence in context: A252856 A184089 A254071 * A107514 A116219 A232199
KEYWORD
nonn
EXTENSIONS
More terms from Seiichi Manyama, Oct 16 2018
STATUS
approved