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A232160
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Number of nX7 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, vertically or antidiagonally, and no adjacent values equal
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1
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48, 9004, 124436, 1767266, 26694774, 415332300, 6564512068, 103384156384, 1636124088162, 25973583237174, 411171410014356, 6519608941018384, 103473233282931542, 1639791299611784558, 26009017324816484476
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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
..2..3..2..0..2..3..0....3..1..2..3..2..1..3....3..1..3..2..1..0..1
..1..0..3..1..0..2..1....2..3..1..0..3..0..1....0..2..1..0..2..3..2
..3..1..2..3..1..3..0....1..0..3..1..2..3..2....1..3..2..3..0..1..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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