A212948 Number of 6Xn 0..n-1 arrays with no column j greater than or equal to than column j-1 in all rows

1, 3367, 320396041, 232665778445031, 764898125476357657001, 8389667096561737605103329223, 250841509251155966625680184691562929, 17704338387777976852462465598115049461004519

Offset

1,2

Comments

Row 6 of A212943

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

Some solutions for n=4
..1..3..2..2....2..0..0..0....1..3..2..3....3..2..1..3....3..2..0..2
..1..1..3..2....0..1..0..1....1..0..0..1....0..3..1..0....3..2..3..3
..0..1..0..3....3..3..3..2....1..1..1..2....2..1..0..3....2..3..0..0
..3..1..3..2....3..0..3..0....2..3..0..3....3..3..3..3....1..2..3..2
..2..1..1..2....2..0..2..2....3..0..0..3....2..1..3..1....2..0..2..1
..2..0..1..3....3..0..0..0....3..3..2..1....3..0..0..1....0..1..2..1

Crossrefs

Sequence in context: A265625 A014441 A293651 * A204471 A139778 A346025

Adjacent sequences: A212945 A212946 A212947 * A212949 A212950 A212951

Keyword

nonn

Author

R. H. Hardin May 31 2012

Status

approved