A220157 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array

21, 95, 727, 5410, 34959, 214767, 1272216, 7244186, 39698797, 209815077, 1070798249, 5281686410, 25200974573, 116438844036

Offset

1,1

Comments

Row 5 of A220153

Links

Table of n, a(n) for n=1..14.

Example

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

Crossrefs

Sequence in context: A296822 A174084 A193218 * A264239 A200255 A212406

Adjacent sequences: A220154 A220155 A220156 * A220158 A220159 A220160

Keyword

nonn

Author

R. H. Hardin Dec 06 2012

Status

approved