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A278655
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Number of nX7 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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504, 2080575, 2864009499, 3014441325194, 2738085955639984, 2208684003726307854, 1606277016357286546242, 1064650757873104185361759, 648100425195945762366583042, 364419942118182508200030228710
(list;
graph;
refs;
listen;
history;
text;
internal format)
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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=1
..0..2..0..0..1..2..2. .1..2..2..1..2..1..2. .1..2..1..1..2..0..1
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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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