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A218647
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Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..3 nX4 array
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1
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36, 292, 4946, 82188, 1374954, 23370578, 394655980, 6688451956, 113330380248, 1919929942392, 32533805101006, 551254991578840, 9340671432312772, 158272966584027210, 2681844781855552786, 45442423044091925218
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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
..2..2..2..1....2..1..1..1....0..0..0..0....2..1..1..1....0..0..1..2
..2..2..1..1....2..1..1..1....0..0..0..0....2..1..1..1....0..0..2..2
..2..2..1..1....2..1..1..2....2..3..2..2....3..3..1..1....0..0..3..3
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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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