A023939 Theta series of laminated lattice LAMBDA_17.

1, 0, 5346, 98304, 918432, 4587520, 19177024, 57212928, 165906146, 376963072, 883961280, 1698136064, 3470990016, 5941886976, 11030584064, 17382047744, 30021568416, 44448612352, 72629554338, 102332399616, 160092212672, 216807505920, 327100501440, 428995051520

Offset

0,3

References

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 174.

Links

Andy Huchala, Table of n, a(n) for n = 0..20000

Prog

(Magma)
L := Lattice("Lambda", 17);
B := Basis(ThetaSeriesModularFormSpace(L), 20);
Coefficients(B[1] + 5346*B[3] + 98304*B[4] + 918432*B[5] + 4587520*B[6]+19177024*B[7]+57212928*B[8]+165906146*B[9]); // Andy Huchala, Jun 16 2021

Crossrefs

Sequence in context: A050814 A234213 A187435 * A204863 A259893 A206681

Adjacent sequences: A023936 A023937 A023938 * A023940 A023941 A023942

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved