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A029677
Theta series of quadratic form with Gram matrix [ 4, 1, 0; 1, 4, 2; 0, 2, 6 ].
1
1, 0, 4, 6, 2, 6, 2, 6, 10, 2, 4, 10, 12, 6, 6, 6, 6, 10, 10, 10, 16, 6, 2, 12, 12, 4, 8, 22, 12, 12, 8, 8, 22, 10, 4, 22, 10, 0, 16, 10, 12, 18, 10, 14, 20, 16, 8, 26, 20, 6, 16, 14, 16, 10, 14, 10, 16, 10, 12, 28, 12, 8, 28, 28, 10, 16, 10, 16, 36, 8, 8, 18, 30, 18, 0, 26, 20, 22, 12, 6, 36
OFFSET
0,3
COMMENTS
This is the triclinic P lattice (the even holotype) of dimension 3.
LINKS
G. Nebe and N. J. A. Sloane, Home page for this lattice
EXAMPLE
1 + 4*q^4 + 6*q^6 + 2*q^8 + 6*q^10 + 2*q^12 + 6*q^14 + 10*q^16 + 2*q^18 + 4*q^20 + ...
CROSSREFS
Sequence in context: A160502 A010669 A225092 * A045867 A236189 A347910
KEYWORD
nonn
AUTHOR
STATUS
approved