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A223125
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Number of nX7 0..2 arrays with no more than floor(nX7/2) elements equal 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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168, 212771, 186184618, 288571160526, 266413907612919, 431398785877769642, 408653905036011361072, 676042978091871167227096, 650052595352039506901487013, 1088984293616040434966698723941
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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..0..2....0..0..0..0..1..2..1....0..0..0..0..1..2..0
..0..0..2..0..1..0..1....0..0..2..2..1..2..0....0..0..2..2..1..2..0
..2..0..2..0..0..0..2....1..0..1..0..0..2..0....2..0..0..2..0..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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