A220043 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX7 array

84, 249, 26963, 1746346, 115306521

Offset

1,1

Comments

Column 7 of A220044

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A219459 A112066 A096383 * A137210 A220009 A160321

Adjacent sequences: A220040 A220041 A220042 * A220044 A220045 A220046

Keyword

nonn

Author

R. H. Hardin Dec 03 2012

Status

approved