A219216 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 columns, 0..2 nX7 array

28, 57, 2508, 42301, 854611, 14175675, 225464479, 3456415362, 52566495532, 778435901166, 11054454080614, 149659556619554, 1940415772835623, 24267473416187079

Offset

1,1

Comments

Column 7 of A219217

Links

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

Example

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

Crossrefs

Sequence in context: A042562 A042564 A219920 * A042566 A132769 A329306

Adjacent sequences: A219213 A219214 A219215 * A219217 A219218 A219219

Keyword

nonn

Author

R. H. Hardin Nov 14 2012

Status

approved