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A265958
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Number of n X 4 integer arrays with each element equal to the number of horizontal, vertical, diagonal and antidiagonal neighbors less than itself.
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1
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11, 4267, 31940, 8205996, 661278762, 50708665808, 8616991831997, 812470633027474, 88302323065756823, 11721293299774938781, 1270040611497678795909, 146824260472579851641824
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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=3
..1..4..0..2....0..3..2..0....0..0..4..1....0..4..3..0....0..3..1..2
..4..0..0..5....0..7..7..1....0..8..0..1....5..3..1..1....0..7..7..0
..0..3..4..1....0..0..1..2....1..3..3..2....0..4..3..2....2..0..3..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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