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A222689
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Number of nX7 0..2 arrays with exactly floor(nX7/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order
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1
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10, 784, 25642, 3056797, 126928736, 18253875506, 832227066041, 125067423389467, 5853920434490847, 892160813906817986, 42242385262760099184, 6488373830482943076081, 309430010760744167416957
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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=3
..0..0..0..0..1..1..2....0..0..0..0..0..1..2....0..1..2..1..0..0..0
..0..0..0..0..0..0..1....0..0..0..0..0..2..0....1..1..1..1..0..0..0
..0..0..0..0..0..1..1....0..0..0..0..2..1..2....1..1..0..0..0..0..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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