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Search: id:A032800
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| A032800 |
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If there were a 9-dimensional unimodular lattice with minimal norm 2, this would be its theta series; however, no such lattice exists. |
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+0
1
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| 1, 0, 252, 456, 2178, 4320, 7176, 13536, 21744, 35072, 43560, 60984, 95712, 125280, 143280, 178080, 261234, 315648, 347748, 424152, 557280, 665280, 695592, 804960, 1070112, 1262592, 1226520, 1418592
(list; graph; listen)
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OFFSET
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0,3
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REFERENCES
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J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 416.
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LINKS
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E. M. Rains and N. J. A. Sloane, The Shadow Theory of Modular and Unimodular Lattices, J. Number Theory, 73 (1998), 359-389.
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CROSSREFS
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Sequence in context: A072443 A129623 A062904 this_sequence A024749 A024757 A046379
Adjacent sequences: A032797 A032798 A032799 this_sequence A032801 A032802 A032803
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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