A219808 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 7Xn array

84, 231, 10448, 279458, 7667972, 204182570

Offset

1,1

Comments

Row 7 of A219802

Links

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

Example

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

Crossrefs

Sequence in context: A135804 A211256 A335081 * A219459 A112066 A096383

Adjacent sequences: A219805 A219806 A219807 * A219809 A219810 A219811

Keyword

nonn

Author

R. H. Hardin Nov 28 2012

Status

approved