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A264644
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Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 4.
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0
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1, 1, 8, 55, 572, 5928, 113808, 2536688, 79981184, 2501785344, 102724061184, 4063172935680, 228978765692928
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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=4
..4..1..2..5....0..6..1..4....0..7..1..4....3..0..6..1....0..7..4..1
..0..3..6..7....3..7..2..5....6..3..5..2....7..4..2..5....6..3..2..5
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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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