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A236031
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Number of (n+1)X(4+1) 0..2 arrays colored with the difference of the upper median and the lower median in each 2X2 subblock
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1
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8856, 93640, 965344, 11384132, 135945364, 1562942580, 18041076392, 210792493144, 2453096266960, 28456755301120, 330738388509532, 3846712748184992, 44706696393514612, 519538738634893428
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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=2
..1..0..2..1..2....1..2..2..2..0....1..1..0..0..0....0..2..0..1..0
..1..0..2..0..1....0..1..0..2..0....1..2..0..1..2....1..0..0..2..1
..1..1..0..2..0....0..2..1..2..2....1..2..0..1..1....1..1..2..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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