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A202162
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Number of nX2 0..3 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease
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1
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0, 0, 4, 44, 288, 1537, 7328, 32515, 137127, 557042, 2199406, 8493667, 32225692, 120526196, 445477330, 1630344366, 5917000834, 21321552087, 76358216811, 271995346780, 964328895552, 3404784217800, 11977326096426, 41996294148654
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OFFSET
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1,3
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=8
..0..0....0..0....0..0....0..1....0..0....0..0....0..0....0..1....0..0....0..0
..0..1....0..0....0..2....0..1....0..0....0..0....0..0....0..1....0..2....0..0
..0..1....0..0....1..1....2..3....1..1....0..0....0..1....1..1....1..1....0..2
..2..2....0..0....1..3....1..2....1..1....2..2....2..3....2..3....1..2....3..3
..1..1....1..2....1..3....2..2....2..2....1..1....1..1....2..3....1..2....1..2
..1..2....2..2....3..3....3..3....1..1....2..3....2..2....2..2....1..3....1..3
..2..3....2..3....2..2....2..2....2..3....1..1....2..3....3..3....3..3....2..2
..1..2....1..1....2..2....2..3....2..2....2..2....1..2....2..2....1..2....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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