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A207226
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Number of nX6 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal
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1
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425, 180625, 21553541, 3814387801, 648206318305, 105855104360481, 17182219699443153, 2796398012458324953, 456641535527116726913, 74625179886401434526953, 12190343017464128551053825
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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..1..1..1..1....1..2..2..2..1..0....2..0..1..2..0..2....1..2..2..2..1..0
..0..0..1..2..2..0....0..1..2..2..0..1....1..0..2..1..0..2....2..2..1..0..2..1
..0..0..2..0..2..2....0..0..2..2..0..1....0..2..2..0..0..2....2..2..0..1..2..2
..0..1..2..0..0..2....0..2..0..2..1..1....2..2..0..0..2..2....1..0..2..2..1..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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