A063864 Theta series of A15 packing with respect to point (0,1,2).

1, 0, 0, 0, 2, 4, 8, 0, 0, 0, 0, 0, 0, 4, 16, 0, 6, 0, 0, 0, 8, 8, 8, 0, 0, 0, 0, 0, 0, 12, 16, 0, 12, 0, 0, 0, 10, 4, 24, 0, 0, 0, 0, 0, 0, 12, 16, 0, 8, 0, 0, 0, 8, 12, 32, 0, 0, 0, 0, 0, 0, 12, 32, 0, 6, 0, 0, 0, 16, 16, 16, 0, 0, 0, 0, 0, 0, 16, 16, 0, 24, 0, 0, 0

Offset

0,5

Comments

The A15 packing is the union of 8 translates of the lattice 4Z^3 by the vectors (0,0,0), (2,2,2) and all cyclic shifts of (0, +-1, 2).

Links

Table of n, a(n) for n=0..83.

Center for Computational Materials Science, Naval Research Laboratory (mehl(AT)dave.nrl.navy.mil), The A15 Structure

Example

1 + 2*q^4 + 4*q^5 + 8*q^6 + 4*q^13 + 16*q^14 + 6*q^16 + 8*q^20 + 8*q^21 + 8*q^22 + ...

Crossrefs

Cf. A063863.

Sequence in context: A174393 A153662 A222011 * A186036 A186040 A119927

Adjacent sequences: A063861 A063862 A063863 * A063865 A063866 A063867

Keyword

nonn

Author

N. J. A. Sloane, Aug 27 2001

Status

approved