A278894 Number of nX6 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.

728, 7709668, 27351484380, 69420349158080, 143827898685401892, 255381654976413401664, 398752554782396916414790, 556345120757052440184428640, 701731665791093785660064537242

Offset

1,1

Comments

Column 6 of A278896.

Links

R. H. Hardin, Table of n, a(n) for n = 1..19

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

Adjacent sequences: A278891 A278892 A278893 * A278895 A278896 A278897

Keyword

nonn

Author

R. H. Hardin, Nov 30 2016

Status

approved