A224049 Number of nX7 0..3 arrays with rows and columns unimodal and antidiagonals nondecreasing.

1163, 180821, 7655477, 153482649, 1999959111, 20096076442, 169750613182, 1265415997425, 8609328529478, 54810160645347, 332129717908612, 1933871450604161, 10857958349352084, 58782328259016090

Offset: 1

Author

R. H. Hardin Apr 01 2013

Keywords

• nonn

Comments

Column 7 of A224050

Examples

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