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Search: id:A065535
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| A065535 |
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Number of strongly perfect lattices in dimension n. |
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+0
4
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| 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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J. Martinet, Les reseaux parfaits des espaces Euclidiens, Masson, Paris, 1996.
J. Martinet, Perfect Lattices in Euclidean Spaces, Springer-Verlag, NY, 2003.
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LINKS
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B. Venkov, Reseaux et designs spheriques, pp. 10-86 in Reseaux Euclidiens, Designs Spheriques et Formes Modulaires, ed. J. Martinet, L'Enseignement Mathematiques, Geneva, 2001.
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CROSSREFS
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Cf. A037075, A065536, A004026.
Sequence in context: A143220 A136669 A103842 this_sequence A093719 A153778 A065251
Adjacent sequences: A065532 A065533 A065534 this_sequence A065536 A065537 A065538
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KEYWORD
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nonn,nice,hard
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Nov 16 2001
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EXTENSIONS
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It is known that a(12) through a(24) are at least 1, 0, 1, 0, 3, 0, 1, 0, 1, 1, 5, 4, 2 respectively.
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