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A222981
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Number of nX3 0..2 arrays with no more than floor(nX3/2) 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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1, 7, 43, 584, 2903, 45718, 227569, 3706702, 18721501, 309335666, 1578160193, 26302908158, 135163043693, 2266015930226, 11706886012409, 197109806616950, 1022513778146405, 17272771472939290, 89894465367630385
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OFFSET
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1,2
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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..1..1....0..0..0....0..1..2....0..0..1....0..0..0....0..0..0....0..0..0
..1..1..1....0..0..0....1..1..1....0..1..1....0..0..1....0..0..0....0..0..1
..1..1..2....0..1..0....1..1..1....1..1..1....2..2..2....0..0..0....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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