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A183440
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Number of nX7 binary arrays with every 1 having exactly one king-move neighbor equal to 1
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1
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13, 330, 2221, 26243, 329520, 3352423, 37904950, 428516444, 4696093253, 52414238887, 584027763963, 6479434085007, 72103072031942, 801943134829675, 8914321278709809, 99138406634724651, 1102410186514940047
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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 3X7
..1..0..0..0..0..0..0....0..0..1..1..0..1..0....1..1..0..0..0..1..0
..1..0..0..0..0..0..0....1..0..0..0..0..1..0....0..0..0..0..1..0..0
..0..0..0..0..1..1..0....1..0..0..0..0..0..0....1..1..0..0..0..0..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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