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A278653
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Number of nX5 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.
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1
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6, 19893, 6920404, 1386399220, 208991393214, 25885621037640, 2738085955639984, 253197559557136896, 20837244744657222577, 1548877617380719532356, 105295704767594170862145, 6615650045831782073579069
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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=2
..1..1..1..2..2. .1..1..2..1..1. .0..2..1..0..1. .1..1..0..0..0
..2..0..1..0..2. .0..2..0..2..0. .0..1..2..0..2. .0..1..1..2..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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