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A206956
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Number of nX7 0..2 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal
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1
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1465, 2146225, 1455935650, 950821989599, 656572043220119, 455424052435622710, 314368117565737962789, 216873306373656734739325, 149694579632520898257449851, 103334879849813837848577474301
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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
..1..1..1..0..0..1..2....1..2..2..0..1..2..2....0..2..2..1..1..2..2
..2..0..0..0..2..0..2....2..1..0..1..2..2..2....1..2..0..1..1..2..2
..2..0..1..1..0..0..2....2..1..1..1..0..2..2....1..0..1..2..0..1..2
..2..1..2..2..1..2..0....1..2..2..2..2..1..2....2..0..2..2..2..1..2
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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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