A008664 Theta series of direct sum of f.c.c. and b.c.c. lattices.

1, 0, 0, 8, 18, 0, 0, 96, 90, 0, 0, 72, 212, 0, 0, 480, 330, 0, 0, 264, 528, 0, 0, 1056, 836, 0, 0, 528, 1056, 0, 0, 1920, 1386, 0, 0, 768, 1894, 0, 0, 3360, 2064, 0, 0, 1224, 2484, 0, 0, 4416, 3428, 0, 0, 1936

Offset

0,4

References

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 113, 116.

Links

Table of n, a(n) for n=0..51.

Index entries for sequences related to b.c.c. lattice

Index entries for sequences related to f.c.c. lattice

Crossrefs

Sequence in context: A176823 A316199 A300905 * A107779 A018874 A163900

Adjacent sequences: A008661 A008662 A008663 * A008665 A008666 A008667

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved