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A005139
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Number of n-dimensional determinant 3 lattices.
(Formerly M0218)
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0
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0, 1, 2, 2, 2, 2, 3, 3, 4, 5, 7, 8, 10, 13, 19, 24, 36, 53
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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REFERENCES
| J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 402.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A140436 A029083 A153683 * A005134 A081651 A029193
Adjacent sequences: A005136 A005137 A005138 * A005140 A005141 A005142
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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