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Search: id:A005136
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| A005136 |
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Highest minimal norm of n-dimensional unimodular lattice.
(Formerly M0057)
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+0
2
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| 0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 4, 2, 3, 3, 3, 3, 3, 3, 4, 3
(list; graph; listen)
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OFFSET
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0,9
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REFERENCES
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J. H. Conway and N. J. A. Sloane, A new upper bound for the minimum of an integral lattice of determinant one, Bull. Amer. Math. Soc., 23 (1990), 383-387.
J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. xxiv.
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CROSSREFS
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Sequence in context: A025869 A093320 A082370 this_sequence A138474 A058761 A050119
Adjacent sequences: A005133 A005134 A005135 this_sequence A005137 A005138 A005139
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KEYWORD
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nonn,hard
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AUTHOR
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njas
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EXTENSIONS
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The entries continue: 3 or 4, 3 or 4, 4, 3 or 4, 3 or 4, 3 or 4, 4 (at dim 40).
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