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A266106
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Number of 6Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.
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1
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1, 272, 3928, 26948, 457738, 12401485, 240721036, 3915407831, 72703138725, 1459414293797, 27836081746405, 518910020345998, 9822723169066292, 186833710020397058, 3546385987603510610, 67356747007063872600
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OFFSET
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1,2
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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..0..1..2....0..2..1..2....1..0..2..1....1..0..2..1....1..0..0..1
..0..2..1..1....1..0..1..1....1..1..0..1....1..1..0..0....0..2..1..1
..0..0..0..0....0..2..0..1....2..1..2..0....2..1..2..0....1..0..0..0
..0..0..0..0....1..0..2..1....1..0..0..1....2..1..0..0....0..0..2..1
..1..2..0..0....0..0..0..1....0..0..1..1....2..1..2..1....1..1..0..1
..1..0..0..1....1..1..1..0....1..1..0..0....1..0..0..0....2..1..2..0
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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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