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A022085
Theta series of D*_32 lattice.
2
1, 64, 1984, 39680, 575424, 6448000, 58115328, 433131008, 7019874240, 14709082432, 206518750336, 285848172800, 3185272407296, 3515371815296, 32146948928000, 30156949879296, 238103408854976, 197101549419648, 1393386325958336, 1045365667116800, 6768246939487360
OFFSET
0,2
REFERENCES
J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 120.
LINKS
EXAMPLE
G.f. = 1 + 64*q^2 + 1984*q^4 + ...
PROG
(Sage)
L = [1, 64, 1984, 39680, 575424]
M = ModularForms(Gamma0(2), 16)
bases = [_.q_expansion(30) for _ in M.integral_basis()]
f = sum(x*y for (x, y) in zip(bases, L)); list(f) # Andy Huchala, Jul 15 2021
CROSSREFS
Sequence in context: A010841 A226558 A302856 * A017780 A324492 A035727
KEYWORD
nonn
EXTENSIONS
More terms from Andy Huchala, Jul 15 2021
STATUS
approved