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A267024
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Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any northeast or northwest neighbors modulo 5 and the upper left element equal to 0.
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0
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24, 11, 45, 259, 2063, 18157, 172169, 1717333, 17555313, 184061791, 1966919505, 21379461151, 235731898917, 2632460173093
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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..4..2....0..2..4..1....0..2..0..2....0..3..1..3....0..3..1..3
..3..0..2..4....3..0..2..4....3..0..3..1....4..1..4..1....3..1..4..1
..1..3..0..3....0..3..0..2....0..3..1..3....2..4..2..0....2..4..1..4
..3..1..4..1....3..1..3..1....4..1..4..2....4..2..0..2....0..2..4..2
..1..4..2..0....2..4..1..4....1..4..2..4....3..0..3..1....2..0..3..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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