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A235734
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Number of (n+1)X(6+1) 0..1 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise
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1
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9476, 659235, 45143913, 3054397001, 206338701948, 13917264768542, 938576320212723, 63284897779329856, 4267061431114208101, 287704678019988657956, 19398390104285918553851, 1307925525422444080438597
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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
..1..0..1..0..0..1..0....1..0..1..0..1..1..1....0..0..1..0..1..1..1
..1..0..0..0..1..1..1....0..0..1..1..0..0..1....1..0..0..0..1..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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