A220203 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..3 nX7 array

84, 567, 33804, 1594229, 70265746, 3139823062

Offset

1,1

Comments

Column 7 of A220204

Links

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

Example

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

Crossrefs

Sequence in context: A233056 A211260 A233053 * A008429 A175813 A238523

Adjacent sequences: A220200 A220201 A220202 * A220204 A220205 A220206

Keyword

nonn

Author

R. H. Hardin Dec 07 2012

Status

approved