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A222922
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Number of nX4 0..4 arrays with no three equal values in a row horizontally or vertically, and new values 0..4 introduced in row major order
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1
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12, 3183, 1396408, 700411548, 352790675074, 177991922235005, 89795579488204082, 45302597340251356553, 22855446389732416394860, 11530725901161434778153848, 5817327820706155068068660004
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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..1..1....0..0..1..0....0..0..1..0....0..0..1..1....0..0..1..0
..2..3..0..3....1..2..2..1....2..2..3..0....2..0..0..1....1..2..0..1
..3..0..2..4....3..1..0..2....2..3..2..2....3..2..2..4....3..4..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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