A218521 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 nX7 array.

602, 242438, 100029148, 38497164700, 15254005086276, 5977895789290552, 2345237392530015812, 920135128267216305816, 361061212834288178529464, 141687156380002483076174644, 55601697647561060078651796422

Offset: 1

Author

R. H. Hardin Oct 31 2012

Keywords

• nonn

Comments

Column 7 of A218522

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..53