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A266066
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Number of nX6 integer arrays with each element equal to the number of horizontal, vertical, diagonal and antidiagonal neighbors exactly one smaller than itself.
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0
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16, 1057, 1750, 25663, 1066148, 11211992, 156829155, 3678276863, 55555604963, 924058858458, 17716431261668, 297095816076323
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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..3..1..0....0..1..2..2..0..1....2..1..2..3..2..1....1..1..1..2..1..1
..2..3..2..2..2..1....1..3..3..1..1..1....2..1..0..2..1..0....2..0..2..3..0..2
..2..1..3..0..3..2....2..2..3..1..1..1....2..2..2..1..3..2....2..0..2..3..0..2
..0..1..2..0..0..1....0..1..2..2..0..1....1..0..3..2..1..0....1..1..2..1..1..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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