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A266024
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Number of nX7 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors exactly one smaller than itself.
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0
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25, 719, 3394, 110924, 3254726, 63460724, 1577145547, 38948760562, 916245375526, 22100022039548, 535029907435345, 12865137927698631
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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
..1..0..1..1..0..0..0....1..2..1..2..0..2..0....1..2..2..1..2..1..0
..1..2..2..3..2..2..0....0..0..1..2..1..1..1....0..1..2..0..2..2..1
..2..0..2..1..1..1..2....0..2..2..3..2..2..2....2..3..2..1..3..2..1
..1..1..2..0..1..1..0....1..2..1..0..0..0..1....1..0..1..1..0..0..1
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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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