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A029595 Theta series of quadratic form (or lattice) with Gram matrix [ 1, 0, 0; 0, 2, 1; 0, 1, 3 ]. 1
1, 2, 2, 8, 10, 0, 4, 12, 10, 6, 2, 16, 16, 8, 4, 4, 26, 4, 10, 32, 0, 8, 12, 12, 20, 2, 4, 32, 36, 8, 0, 24, 26, 8, 12, 8, 30, 16, 4, 24, 10, 8, 8, 56, 32, 0, 20, 12, 32, 14, 2, 48, 40, 8, 16, 0, 20, 16, 20, 32, 12, 16, 8, 36, 58, 4, 8, 72, 20, 8, 0, 24, 50, 20, 12, 8, 64 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

This is the digonal C lattice (the classical holotype) of dimension 3.

LINKS

John Cannon, Table of n, a(n) for n = 0..10000

G. Nebe and N. J. A. Sloane, Home page for this lattice

EXAMPLE

1 + 2*q + 2*q^2 + 8*q^3 + 10*q^4 + 4*q^6 + 12*q^7 + 10*q^8 + 6*q^9 + 2*q^10 + ...

CROSSREFS

Sequence in context: A137726 A121098 A121094 * A343447 A320138 A325102

Adjacent sequences:  A029592 A029593 A029594 * A029596 A029597 A029598

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified December 4 18:08 EST 2021. Contains 349526 sequences. (Running on oeis4.)