A223960 Number of nX7 0..3 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.

120, 7470, 217144, 4500818, 85350934, 1629022329, 31770135236, 629825651180, 12620835427126, 254719515611821, 5165793380135728, 105110696722615853, 2143594088287821599, 43784293043682987873, 895295525455930993505

Offset: 1

Author

R. H. Hardin Mar 29 2013

Keywords

• nonn

Comments

Column 7 of A223961

Examples

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

Links

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