A278625 Number of nX6 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.

266, 31605, 3438414, 387542112, 43853346948, 4902306226424, 540194658701142, 58237100230743229, 6049936223396297740, 596291979361147397590, 55176657492423943503531, 4770167181501151268299031

Offset: 1

Author

R. H. Hardin, Nov 24 2016

Keywords

• nonn

Comments

Column 6 of A278627.

Examples

			Some solutions for n=2
..0..2..2..1..1..0. .1..0..2..1..0..0. .0..0..2..0..0..0. .2..0..0..2..1..0
..1..2..1..0..0..1. .2..2..1..2..2..2. .2..1..1..2..2..2. .2..2..0..0..2..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..47

Crossrefs

Cf. A278627.