A220008 Number of nX6 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX6 array

56, 154, 5686, 172143, 4135362, 83856137, 1728522691, 38003119019, 846454884120, 18017900315394, 359962291737050, 6817357120618569, 124115873900832957, 2186082272472604299

Offset

1,1

Comments

Column 6 of A220010

Links

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

Example

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

Crossrefs

Sequence in context: A226128 A038850 A220042 * A044388 A044769 A154034

Adjacent sequences: A220005 A220006 A220007 * A220009 A220010 A220011

Keyword

nonn

Author

R. H. Hardin Dec 03 2012

Status

approved