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A224390
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Number of nX7 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing
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1
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120, 14400, 881519, 32806574, 882833522, 19879000458, 424124440444, 9276284077351, 212972822153405, 5078434646430668, 123731812099601647, 3047111408129189213, 75453561534676485695, 1874665689163421824860
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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..0..0..0..0....0..0..1..1..2..3..3....0..0..0..0..0..0..2
..0..0..0..1..2..3..3....0..2..2..2..2..2..2....0..0..2..2..2..2..3
..0..0..0..1..1..2..2....0..1..1..2..2..3..3....0..0..0..0..2..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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