A219594 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX7 array.

28, 112, 2415, 51122, 939006, 18945258, 415752625, 9020862207, 186931045741, 3664369196641

Offset

1,1

Comments

Column 7 of A219595

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A245153 A295981 A064763 * A042534 A042536 A042538

Adjacent sequences: A219591 A219592 A219593 * A219595 A219596 A219597

Keyword

nonn

Author

R. H. Hardin, Nov 23 2012

Status

approved