A224177 Number of 6 X n 0..3 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

84, 7056, 282372, 6425876, 95808564, 1038484760, 8857798353, 63080505999, 391482575333, 2182020084219, 11154302333669, 53070835890575, 237508827855216, 1007614860280386, 4076458517196412, 15801076345180104, 58906922067133096, 211885437690782790, 737309735186245955

Offset: 1

Author

R. H. Hardin, Mar 31 2013

Keywords

• nonn

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..39

Crossrefs

Row 6 of A224173.

Extensions

Name corrected by Andrew Howroyd, Mar 18 2025