id:A028926 - OEIS Search Results

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Number of pairs of minimal vectors in n-dimensional lattice Kappa_n.

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0, 1, 3, 6, 12, 20, 36, 46, 66, 90, 138, 216, 378, 459, 616, 873, 1645, 2133 (list; graph; listen)

	OFFSET	`0,3`
	REFERENCES	`J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 161.`
	CROSSREFS	`A028923 / 2.` `Sequence in context: A034333 A006128 A079983 this_sequence A038577 A028925 A028924` `Adjacent sequences: A028923 A028924 A028925 this_sequence A028927 A028928 A028929`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.