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A265876
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Number of nX4 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors less than itself.
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1
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11, 2084, 30363, 4393458, 344222538, 26635427570, 2364713952883, 192749468823491, 16304514146592293, 1365864408666301056, 114473947407036061803, 9608813664898230605010, 805265562989000430944801
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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
..0..4..1..0....0..1..3..0....1..3..4..0....0..3..3..0....1..1..2..0
..3..1..6..2....1..6..0..4....0..0..0..3....0..1..1..4....0..5..5..2
..1..0..2..0....1..0..3..0....3..2..3..0....3..2..3..0....0..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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