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A204334
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Number of (n+1)X4 0..7 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively
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1
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296860, 28167739, 1641649698, 68380482851, 2112336887047, 52148478516988, 1056518851863222, 18214385897286379, 272369535865540934, 3605626582401347706, 42838162300239816905, 462748031670197579287
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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 n=4
..5..1..7..4....2..5..6..4....1..0..5..4....0..3..5..6....2..4..6..6
..0..6..4..7....5..6..5..7....5..6..4..5....7..4..5..6....7..5..5..7
..2..4..6..7....5..6..7..6....6..5..7..6....4..7..6..6....5..7..7..7
..0..6..7..7....4..7..6..7....4..7..6..7....5..6..7..7....6..7..7..7
..0..6..7..7....5..6..7..6....7..6..7..6....6..6..7..7....6..7..7..7
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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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