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A224309
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Number of nX7 0..2 arrays with diagonals and rows unimodal and antidiagonals nondecreasing
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1
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239, 10511, 174378, 1825800, 15312504, 118317987, 911404794, 7236130163, 59751261572, 512310103541, 4533427479414, 41097427928564, 379017425099579, 3535755438091183, 33225644610034806, 313628721090498518
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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..1..2..2....0..0..0..1..2..1..0....0..0..2..2..0..0..0
..0..0..2..2..2..2..0....0..0..1..2..1..0..0....0..2..2..2..2..0..0
..2..2..2..2..2..0..0....0..2..2..1..1..1..0....2..2..2..2..1..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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