A224389 Number of nX6 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.

84, 7056, 319769, 9331553, 211856287, 4364554008, 90682660877, 1970202629627, 44404431681110, 1020688669518185, 23669944875525397, 551060981056174321, 12857376512847673306, 300489121615902701612, 7032615140846782176382

Offset: 1

Author

R. H. Hardin Apr 05 2013

Keywords

• nonn

Comments

Column 6 of A224391

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210