A224390 Number of nX7 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.

120, 14400, 881519, 32806574, 882833522, 19879000458, 424124440444, 9276284077351, 212972822153405, 5078434646430668, 123731812099601647, 3047111408129189213, 75453561534676485695, 1874665689163421824860

Offset: 1

Author

R. H. Hardin Apr 05 2013

Keywords

• nonn

Comments

Column 7 of A224391

Examples

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

Links

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