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A223813
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Number of nX4 0..2 arrays with row sums nondecreasing and column sums unimodal
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1
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46, 1922, 65465, 1941904, 52310070, 1313561156, 31302500115, 716436867795, 15887478421991, 343524128791643, 7277651757377395, 151618311154271042, 3115328781386015762, 63276105450145436904, 1272818850579941619368
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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..0..0..0....2..1..1..1....0..1..1..2....0..2..0..0....0..0..1..0
..1..1..2..1....2..2..1..0....1..1..2..0....1..1..2..0....1..0..0..0
..2..2..1..2....1..2..2..1....2..2..1..1....1..2..1..2....0..1..0..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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