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A219372
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Number of n X 7 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 n X 7 array.
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0
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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=3
..0..0..0..1..1..1..2....0..0..0..1..1..1..3....0..0..0..0..3..3..3
..0..0..0..0..1..1..2....0..0..1..1..1..2..1....0..0..0..2..0..0..1
..0..2..0..1..1..1..2....0..0..0..3..3..1..1....0..2..2..0..0..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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