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A278308
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Number of nX7 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.
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1
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504, 197981, 114457714, 69684770828, 38819080346585, 20065923383306483, 10174217016822816668, 5193800251722254864596, 2618709455820562585030428, 1260058503482337718156082135, 564882872428920086722942207177
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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
..0..0..0..2..0..0..0. .0..0..0..1..1..2..0. .0..0..0..1..1..0..1
..0..1..2..2..0..0..0. .1..1..1..1..1..0..0. .0..2..2..0..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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