A219801 Number of nX7 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 nX7 array

84, 114, 8533, 202771, 6627885, 186308295

Offset

1,1

Comments

Column 7 of A219802

Links

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

Example

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

Crossrefs

Sequence in context: A111313 A157119 A209204 * A316833 A316834 A227734

Adjacent sequences: A219798 A219799 A219800 * A219802 A219803 A219804

Keyword

nonn

Author

R. H. Hardin Nov 28 2012

Status

approved