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A264710
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Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 6.
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0
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1, 1, 8, 84, 800, 15360, 357696, 6873984, 262813248, 12288817152, 432621305856, 28148895055872, 2108257586380800
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OFFSET
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1,3
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=6
..6..0..1..7..4.10....0..6..3..9..1..8....6..3..1..4..2..8....6..0.10..4..1..7
..3..9..8..2..5.11....7..4.10.11..2..5....0..9..7.10.11..5....9..3.11..5..2..8
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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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