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A029676
Theta series of quadratic form with Gram matrix [ 3, 1, 0; 1, 3, 1; 0, 1, 4 ].
1
1, 0, 0, 4, 4, 2, 2, 4, 2, 2, 4, 6, 6, 2, 2, 2, 12, 2, 0, 14, 6, 2, 2, 4, 10, 6, 2, 14, 8, 0, 2, 12, 4, 2, 8, 8, 14, 4, 4, 8, 14, 2, 4, 14, 12, 8, 6, 2, 12, 8, 2, 16, 10, 2, 6, 16, 10, 0, 0, 16, 12, 10, 2, 12, 24, 2, 6, 20, 10, 6, 6, 8, 8, 4, 4, 24, 30, 2, 6, 14, 14, 8, 8, 12, 10, 2
OFFSET
0,4
COMMENTS
This is the triclinic P lattice (the classical holotype) of dimension 3.
LINKS
G. Nebe and N. J. A. Sloane, Home page for this lattice
EXAMPLE
1 + 4*q^3 + 4*q^4 + 2*q^5 + 2*q^6 + 4*q^7 + 2*q^8 + 2*q^9 + 4*q^10 + 6*q^11 + ...
CROSSREFS
Sequence in context: A038800 A126712 A162232 * A105190 A002581 A161778
KEYWORD
nonn
AUTHOR
STATUS
approved