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A200529
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Number of nX3 0..2 arrays with every row and column running average nondecreasing rightwards and downwards
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1
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11, 57, 243, 905, 3135, 10292, 32556, 100065, 300847, 888587, 2586994, 7441963, 21193523, 59838942, 167704775, 466986683, 1293018711, 3562315723, 9770764284, 26693067952, 72663897633, 197170483178, 533459459628, 1439508706370
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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=4
..0..0..0....0..0..2....0..2..1....0..0..0....0..0..0....0..0..0....0..0..2
..0..0..0....2..2..2....0..2..1....0..0..0....0..1..1....0..1..1....0..1..2
..0..2..2....2..2..2....1..2..2....0..0..0....0..1..2....0..2..1....0..2..2
..2..2..2....2..2..2....1..2..2....0..1..1....1..2..2....1..1..2....0..2..2
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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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