A217996 Number of nX3 arrays of the minimum or maximum value of corresponding elements and their horizontal and vertical neighbors in a random 0..2 nX3 array.

25, 729, 19665, 531143, 14345273, 387332417, 10458051407, 282370309597, 7624012293659, 205848628366997, 5557913837745823, 150063732111219045, 4051720943493086779, 109396471194812694909

Offset: 1

Author

R. H. Hardin Oct 17 2012

Keywords

• nonn

Comments

Column 3 of A217999

Examples

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