A224309 Number of nX7 0..2 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

239, 10511, 174378, 1825800, 15312504, 118317987, 911404794, 7236130163, 59751261572, 512310103541, 4533427479414, 41097427928564, 379017425099579, 3535755438091183, 33225644610034806, 313628721090498518

Offset: 1

Author

R. H. Hardin Apr 03 2013

Keywords

• nonn

Comments

Column 7 of A224310

Examples

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

Links

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