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A230674
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Number of nX7 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value 2-x(i,j)
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1
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63, 141411, 108108231, 91258562955, 77282148036051, 65376252475286079, 55314799986833459367, 46801278897512391365487, 39598077165834016051238043, 33503529630527901643288424553, 28346994197765512368139659784815
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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..0..0..0..2..0....0..0..0..1..1..2..0....0..0..0..1..1..2..0
..2..2..1..0..2..0..1....2..2..2..1..1..0..0....2..2..1..0..2..0..0
..0..1..0..0..1..1..2....0..0..2..1..2..2..0....0..1..0..2..2..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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