A224062 Number of nX6 0..3 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing.

610, 59792, 1557606, 21167501, 200974242, 1573171210, 11060805360, 72498474377, 448019196499, 2610730742471, 14308688695540, 73630728965911, 355779874654006, 1617038472236418, 6933004209446591, 28139119355529508

Offset: 1

Author

R. H. Hardin Mar 30 2013

Keywords

• nonn

Comments

Column 6 of A224064

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..23