A029670 - OEIS

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A029670

Theta series of quadratic form with Gram matrix [ 2, 1, 0; 1, 3, 1; 0, 1, 3 ].

1, 0, 2, 6, 4, 4, 0, 4, 10, 2, 2, 12, 10, 0, 6, 8, 8, 6, 6, 8, 12, 4, 4, 16, 8, 6, 0, 22, 12, 4, 6, 4, 26, 4, 0, 26, 18, 4, 8, 0, 6, 4, 10, 22, 28, 8, 4, 20, 22, 6, 10, 22, 0, 12, 4, 8, 18, 8, 8, 32, 24, 4, 8, 20, 20, 2, 4, 28, 26, 4, 4, 20, 30, 4, 10, 24, 16, 12, 2, 8, 36, 12, 8 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`This is the monoclinic P 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 + 2q^2 + 6q^3 + 4q^4 + 4q^5 + 4q^7 + 10q^8 + 2q^9 + 2q^10 + 12*q^11 + ...`
	CROSSREFS	`Sequence in context: A102510 A206225 A100115 * A160205 A053794 A003077` `Adjacent sequences: A029667 A029668 A029669 * A029671 A029672 A029673`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.