A218174 Number of n X n arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 n X n array.

4, 28, 2936, 851332, 1661620524, 15513264742256

Offset: 1

Author

R. H. Hardin Oct 22 2012

Keywords

• nonn

Comments

Diagonal of A218181

Examples

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