OFFSET
0,2
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..10000
MATHEMATICA
terms = 14; f[q_] = LatticeData["D31", "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
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Seiichi Manyama, Oct 16 2018
STATUS
approved