A220210 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 7Xn array

84, 1168, 58288, 2089805, 89707755, 3725275252

Offset

1,1

Comments

Row 7 of A220204

Links

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

Example

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

Crossrefs

Sequence in context: A219713 A027821 A220049 * A092719 A219944 A219833

Adjacent sequences: A220207 A220208 A220209 * A220211 A220212 A220213

Keyword

nonn

Author

R. H. Hardin Dec 07 2012

Status

approved