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A223883
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Number of nX3 0..2 arrays with row sums unimodal and column sums inverted unimodal
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1
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22, 564, 11250, 187019, 2718572, 35673854, 431939504, 4901224903, 52724142720, 542458862253, 5374667759935, 51561822161831, 481068900940649, 4380767665324085, 39052633428110362, 341657170980967653
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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
..1..2..0....1..0..1....1..1..1....0..1..0....1..0..2....1..2..1....1..0..2
..1..1..1....1..1..0....0..2..2....1..2..1....2..1..0....2..0..1....1..2..0
..2..1..0....0..0..1....1..0..2....2..0..1....1..0..2....1..2..0....0..1..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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