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A003142
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Largest subset of 3 X 3 X ... X 3 cube (in n dimensions) with no 3 points collinear.
(Formerly M1611)
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2
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OFFSET
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0,2
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COMMENTS
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The D. H. J. Polymath collective found a(5) and a(6) and gives the bound a(n) >= (2 + o(1))*binomial(n, i)*2^i for any i (and note that this is maximized by i near 2n/3). - Charles R Greathouse IV, Jun 11 2013
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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STATUS
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approved
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