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Search: id:A002853
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| A002853 |
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Maximal size of a set of equiangular lines in n dimensions.
(Formerly M2514 N0994)
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+0
1
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| 1, 3, 6, 6, 10, 16, 28, 28, 28, 28, 28, 28, 28, 28, 36, 40, 48, 48
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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W. W. R. Ball and H. S. M. Coxeter,"Mathematical Recreations and Essays," 13th Ed. Dover, p. 307.
P. W. H. Lemmens and J. J. Seidel, Equiangular lines, J. Algebra, 24 (1973), 494-512.
F. Buekenhout, ed., Handbook of Incidence Geometry, 1995, p. 884.
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CROSSREFS
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Sequence in context: A135702 A108850 A111652 this_sequence A135610 A113497 A119980
Adjacent sequences: A002850 A002851 A002852 this_sequence A002854 A002855 A002856
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KEYWORD
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hard,nonn,nice
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AUTHOR
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njas
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EXTENSIONS
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The sequence continues: 72 <= a(19) <= 76, 90 <= a(20) <= 96, a(21) = 126, a(22) = 176, a(23) = ... = a(42) = 276, a(43) = 344.
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