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A236733
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Number of (n+1)X(4+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal
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1
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6663, 131147, 2541745, 55635639, 1233474275, 28500435385, 665661690049, 15768609931211, 375569735335243, 8989526603612093, 215676078863399425, 5183740859875741691, 124709488532738105743, 3002226669923859228469
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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..1..1..1..1....0..1..1..1..0....1..1..0..1..0....1..0..2..0..0
..1..1..2..1..0....2..1..0..1..2....1..2..1..1..1....1..1..1..1..0
..2..0..1..1..1....1..1..2..1..0....1..0..1..0..2....0..1..0..1..1
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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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