A217456 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..2 nX7 array

163, 16887, 2122623, 211328743, 23851967507, 2588934295383, 283827195520911, 31078249002177539

Offset

1,1

Comments

Column 7 of A217457

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A219127 A270203 A049498 * A138932 A217963 A138200

Adjacent sequences: A217453 A217454 A217455 * A217457 A217458 A217459

Keyword

nonn

Author

R. H. Hardin Oct 03 2012

Status

approved