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A223123
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Number of nX5 0..2 arrays with no more than floor(nX5/2) 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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24, 3599, 444555, 95995609, 12483535858, 2785187722316, 372676751243307, 84505903344149667, 11496113424023100640, 2631023871587019381420, 361824554514147138010542, 83303795010271219904813736
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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..0..1..2..1....0..1..0..0..0....0..1..2..0..1
..1..2..1..0..2....0..2..0..2..0....0..1..0..1..1....0..0..0..1..0
..1..0..2..1..0....0..0..0..2..1....2..1..2..1..2....1..2..0..2..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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