A022057 Theta series of D_26 lattice.

1, 1300, 239252, 14797120, 410468500, 6030043240, 54177864000, 343594659200, 1706685733012, 7010460268500, 24832297608040, 77924078814400, 221394909419840, 578472382307304, 1407681394953600, 3221568346322560, 6988918697572500, 14466438251512104

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 = 15; f[q_] = LatticeData["D26", "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