A219583 Number of 6Xn arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 6Xn array.

56, 1107, 43194, 1230906, 40957383, 1391739384

Offset

1,1

Comments

Row 6 of A219578

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A278675 A114059 A221802 * A341429 A002009 A140901

Adjacent sequences: A219580 A219581 A219582 * A219584 A219585 A219586

Keyword

nonn

Author

R. H. Hardin, Nov 23 2012

Status

approved