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A278413
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Number of nX7 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.
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1
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1107, 1046418, 859516239, 724313811311, 615691843257769, 495717541750226155, 361990594590395633400, 238604620055755341800773, 144303226542829352792147114, 81817177352955986859566458268
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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
..2..1..1..1..2..1..2. .2..0..1..0..0..1..1. .1..2..2..0..2..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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