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A275130
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Number of nX7 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2.
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1
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365, 4096, 10077, 48451, 412306, 3586068, 31446544, 276145917, 2432426709, 21443562178, 188954647355, 1664477862236, 14666416028009, 129260090882281, 1139083482681178, 10037066997078506, 88448338430227606, 779467930298530878
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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..0..1..1..2..2..0. .0..1..1..1..2..2..0. .0..1..1..2..2..0..0
..2..2..0..0..0..1..1. .2..2..2..0..1..1..1. .2..0..0..1..1..1..2
..1..1..2..2..2..2..0. .0..1..1..2..2..2..0. .1..1..2..0..2..0..0
..2..0..0..1..1..1..2. .2..2..0..1..0..1..2. .2..0..1..1..1..2..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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