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Search: id:A000938
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| A000938 |
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No-3-in-line problem on n X n grid.
(Formerly M4527 N1919)
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+0
2
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| 0, 8, 44, 152, 372, 824, 1544, 2712, 4448, 6992, 10332, 15072, 21012, 28688, 38520, 50880, 65480, 83640, 104676, 130264, 160556, 195848, 235600, 282840, 336384, 397136, 465876, 544464, 630684
(list; graph; listen)
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OFFSET
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2,2
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REFERENCES
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R. K. Guy, Unsolved combinatorial problems, pp. 121-127 of D. J. A. Welsh, editor, Combinatorial Mathematics and Its Applications. Academic Press, NY, 1971.
R. K. Guy and P. A. Kelly, The No-Three-Line Problem. Research Paper 33, Department of Mathematics, Univ. of Calgary, Calgary, Alberta, Jan. 1968. Condensed version in Canad. Math. Bull. Vol. 11, pp. 527-531, 1968.
M. A. Adena, D. A. Holton and P. A. Kelly, Some thoughts on the no-three-in-line problem, pp. 6-17 of Combinatorial Mathematics (Proceedings 2nd Australian Conf.), Lect. Notes Math. 403, 1974.
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CROSSREFS
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Sequence in context: A075816 A100583 A036464 this_sequence A059596 A005798 A092877
Adjacent sequences: A000935 A000936 A000937 this_sequence A000939 A000940 A000941
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KEYWORD
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nonn,nice
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AUTHOR
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njas
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EXTENSIONS
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Terms a(11) through a(30) from John W. Layman (layman(AT)math.vt.edu), Sep 21 2000.
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