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A235971
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Number of (n+1)X(7+1) 0..3 arrays colored with the upper median value of each 2X2 subblock
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1
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23457361, 325144432, 4326517048, 115542593952, 3197537340066, 90821935266808, 2687792393159216, 78037470795336672, 2300565784912189038, 67748599830071746552, 1998368432305434848404, 58806226201932281606528
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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=1
..0..0..1..0..1..2..3..1....0..0..1..0..1..3..2..1....0..1..1..0..1..0..3..1
..0..2..0..0..1..3..0..1....0..1..0..0..2..2..3..2....1..2..3..0..0..3..2..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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