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A184127
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Number of n X 7 0..3 arrays with rows and columns in nondecreasing order.
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1
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120, 142376, 581588614, 2895890669208, 12323643023399737, 42630936592613426327, 122233352821430587249163, 298254428253388683225868035, 633084498761485396427699934865
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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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EXAMPLE
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Some solutions for 3 X 7
..0..0..0..0..0..0..0....0..0..0..0..0..0..1....0..0..0..0..2..2..2
..0..0..0..0..1..2..3....0..0..0..1..2..3..3....0..0..0..2..0..1..3
..0..0..0..0..3..2..3....0..0..2..0..2..2..3....0..0..2..0..1..3..2
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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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