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A203539
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Number of nX5 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1
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1
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0, 64, 1840, 30976, 1700580, 46485124, 1680210240, 56191754304, 1898704490980, 64488576908484, 2178774976790208, 73775014607038096, 2496772163852959252, 84495658280798176036, 2859840508384744419504, 96787655134946736339600
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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=5
..1..0..0..1..1....0..1..2..0..1....2..1..0..0..2....1..1..0..0..0
..1..2..1..0..0....0..1..2..0..1....0..1..1..1..1....0..1..1..1..1
..0..1..1..2..1....2..1..2..0..2....0..1..2..2..0....0..1..2..2..1
..0..2..0..0..1....1..0..0..1..0....0..1..0..1..0....0..0..0..0..0
..1..1..0..0..1....1..0..1..1..0....1..1..0..1..2....1..1..1..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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