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A207530
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Number of nX3 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column
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1
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58, 3364, 147006, 6758694, 308746116, 14111752738, 644774919410, 29462512318554, 1346264674676774, 61516602865340590, 2810953601086492756, 128444358844906649114, 5869165947931208621620, 268187017757307027598816
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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
..3..1..1....0..3..3....3..3..2....1..3..2....3..1..1....0..1..1....0..1..1
..1..3..3....0..1..3....0..0..2....2..0..2....1..3..2....3..2..2....3..3..0
..3..1..3....2..1..1....1..1..3....2..1..1....3..0..2....1..2..2....3..1..2
..1..3..3....2..1..1....1..1..0....0..1..1....1..1..1....1..3..2....3..2..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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