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A220967
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T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their king-move neighbors in a random 0..2 nXk array
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3
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1, 2, 2, 4, 8, 4, 8, 40, 40, 8, 16, 176, 405, 176, 16, 32, 744, 3561, 3561, 744, 32, 64, 3144, 29567, 60534, 29567, 3144, 64, 128, 13128, 242439, 993913, 993913, 242439, 13128, 128, 256, 54424, 1964902, 16142576
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OFFSET
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1,2
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COMMENTS
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Table starts
...1.....2......4......8.....16.......32......64...128.256
...2.....8.....40....176....744.....3144...13128.54424
...4....40....405...3561..29567...242439.1964902
...8...176...3561..60534.993913.16142576
..16...744..29567.993913
..32..3144.242439
..64.13128
.128
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LINKS
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EXAMPLE
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Some solutions for n=3 k=4
..0..1..0..1....0..1..1..0....1..1..1..1....0..1..0..0....0..0..1..0
..0..1..0..0....1..0..1..1....0..0..0..0....1..0..0..0....0..1..1..1
..1..0..1..1....0..0..0..1....1..0..1..0....0..0..1..0....0..1..1..0
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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