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A267962
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Number of nX3 0..2 arrays with every repeated value in every row and column greater than the previous repeated value.
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1
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24, 576, 9750, 157182, 2253828, 30649446, 392792334, 4834114074, 57285557832, 658558589712, 7367813384346, 80528684687118, 861990117512832, 9057816965527086, 93605798560795056, 952894000040209068
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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Empirical recurrence of order 60 (see link above)
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EXAMPLE
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Some solutions for n=4
..2..0..0....0..2..1....0..2..1....1..2..0....0..0..1....0..0..2....0..1..0
..0..1..1....2..0..2....2..2..0....0..2..1....2..1..1....2..0..1....2..0..1
..2..0..2....0..2..1....2..1..0....1..1..0....1..0..0....0..2..0....1..2..2
..0..1..0....1..2..1....0..0..2....2..0..0....1..0..1....2..1..0....1..1..0
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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