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A195624
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Minimum number of squares removed from an n-dimensional tic-tac-toe board to make winning impossible for either player.
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0
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OFFSET
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2,1
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COMMENTS
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A156989 is the main sequence for this entry. Related to the density Hales-Jewett theorem.
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LINKS
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FORMULA
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CROSSREFS
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KEYWORD
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nonn,hard
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AUTHOR
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STATUS
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approved
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