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A022078 Theta series of D*_25 lattice. 1
1, 0, 0, 0, 50, 0, 0, 0, 1200, 0, 0, 0, 18400, 0, 0, 0, 202450, 0, 0, 0, 1702560, 0, 0, 0, 11389600, 33554432, 0, 0, 62339200, 0, 0, 0, 285385200, 838860800, 0, 0, 1114064850, 0, 0, 0, 3779134240, 10066329600, 0, 0, 11360877600, 0, 0, 0, 30885301600 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,5
REFERENCES
J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 120.
LINKS
EXAMPLE
G.f. = 1 + 50*q^4 + 1200*q^8 + ...
PROG
(Magma)
L := Dual(Lattice("D", 25));
B := Basis(ThetaSeriesModularFormSpace(L), 70);
S := [1, 0, 0, 0, 50, 0, 0, 0, 1200, 0, 0, 0, 18400];
Coefficients(&+[B[i] * S[i] : i in [1..13]]); // Andy Huchala, Jul 14 2021
CROSSREFS
Sequence in context: A023936 A324676 A015066 * A337330 A174914 A036172
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Andy Huchala, Jul 14 2021
STATUS
approved

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)