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

1,1

Comments

Column 6 of A278627.

Links

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

Example

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

Crossrefs

Cf. A278627.

Sequence in context: A205229 A028523 A265034 * A144662 A278307 A060402

Adjacent sequences: A278622 A278623 A278624 * A278626 A278627 A278628

Keyword

nonn

Author

R. H. Hardin, Nov 24 2016

Status

approved