A029672 - OEIS

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A029672

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

1, 0, 2, 8, 2, 0, 6, 8, 6, 0, 4, 8, 12, 0, 4, 24, 2, 0, 14, 8, 0, 0, 8, 16, 18, 0, 4, 32, 12, 0, 16, 8, 6, 0, 4, 16, 14, 0, 8, 32, 12, 0, 24, 24, 12, 0, 8, 16, 12, 0, 10, 48, 0, 0, 18, 16, 12, 0, 12, 8, 36, 0, 12, 56, 2, 0, 16, 24, 12, 0, 8, 16, 42, 0, 12, 40, 12, 0, 36, 24, 0, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`This is the digonal I 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 + 8q^3 + 2q^4 + 6q^6 + 8q^7 + 6q^8 + 4q^10 + 8q^11 + 12*q^12 + ...`
	CROSSREFS	`Sequence in context: A065249 A062038 A021082 * A011309 A087198 A200589` `Adjacent sequences: A029669 A029670 A029671 * A029673 A029674 A029675`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.