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A278894
Number of nX6 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.
1
728, 7709668, 27351484380, 69420349158080, 143827898685401892, 255381654976413401664, 398752554782396916414790, 556345120757052440184428640, 701731665791093785660064537242
OFFSET
1,1
COMMENTS
Column 6 of A278896.
LINKS
EXAMPLE
Some solutions for n=1
..1..2..3..2..0..1. .1..2..3..0..3..1. .0..1..0..1..2..1. .2..3..2..0..1..2
CROSSREFS
Cf. A278896.
Sequence in context: A265103 A050790 A278609 * A214106 A045791 A088035
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 30 2016
STATUS
approved