A015233 - OEIS

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A015233

Theta series of lattice Kappa_9.

1, 0, 180, 416, 1620, 3024, 6404, 9408, 18876, 20048, 43224, 45408, 70462, 82272, 138408, 121600 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	REFERENCES	`J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 161.`
	EXAMPLE	`1+180q^4+416q^6+...`
	CROSSREFS	`Sequence in context: A095650 A066164 A008891 * A004532 A143793 A205818` `Adjacent sequences: A015230 A015231 A015232 * A015234 A015235 A015236`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.