A219815 Number of nX7 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..2 nX7 array

28, 91, 1588, 22017, 283334, 3967857, 59065976, 864699568, 12174420630, 164256040933, 2133182509213

Offset

1,1

Comments

Column 7 of A219816

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Sequence in context: A341623 A272399 A113958 * A044215 A044596 A331765

Adjacent sequences: A219812 A219813 A219814 * A219816 A219817 A219818

Keyword

nonn

Author

R. H. Hardin Nov 28 2012

Status

approved