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A266129
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Number of nX6 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.
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1
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16, 625, 1959, 44623, 1285961, 13689944, 311260836, 6688962679, 100184677192, 2265417750456, 45483452144968, 770435712461338, 16815081540198455, 333162387132057777, 5991913305292420418, 126615975061832318833
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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
..0..2..1..1..1..1....0..1..1..0..2..1....1..0..1..2..1..0....0..2..1..1..2..0
..1..0..2..2..0..0....2..3..2..3..0..1....1..1..2..1..0..1....1..0..2..2..0..1
..0..1..3..2..0..0....1..1..2..2..1..0....0..2..2..0..1..2....1..1..2..3..1..2
..1..0..1..2..1..1....0..0..1..1..0..1....1..0..0..2..1..2....0..1..2..0..1..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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