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A183479
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Number of nX5 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors
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1
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13, 495, 2925, 40073, 706473, 7773025, 107741253, 1577932971, 20728674493, 287526589977, 4036331530635, 55313628172919, 767230355186961, 10669808831015745, 147604547979187367, 2047336009619708185
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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 4X5
..1..1..0..1..1....1..0..0..0..0....1..1..0..0..0....2..2..0..1..1
..0..0..0..0..0....1..0..0..2..2....2..0..0..0..2....0..0..0..0..0
..0..2..1..0..1....0..0..0..0..0....1..2..0..0..2....1..2..2..2..0
..0..2..1..0..1....0..0..2..2..0....2..2..0..0..0....1..2..2..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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