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A264820
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a(n) is the number of 3 X n arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 7.
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0
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=5:
9 0 10 7 14 0 12 14 11 8 12 0 7 1 4 9 7 4 14 8
3 1 4 2 8 7 13 10 4 1 13 14 2 8 11 3 0 12 1 10
12 6 13 5 11 9 6 3 5 2 6 3 9 10 5 6 13 5 2 11
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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