A200853 Number of nX3 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

42, 647, 8535, 103528, 1194898, 13295014, 144195756, 1532754468, 16036647028, 165590166035, 1691004116711, 17103881636663, 171555367761442, 1708005328930678, 16892696764660692, 166083227626724726

Offset: 1

Author

R. H. Hardin Nov 23 2011

Keywords

• nonn

Comments

Column 3 of A200858

Examples

			Some solutions for n=4
..0..0..2....0..1..2....0..0..1....0..1..1....0..0..0....0..2..2....0..0..0
..0..0..2....0..1..3....0..1..1....2..3..4....2..2..4....0..4..3....0..3..4
..4..4..4....1..3..4....3..4..4....1..3..3....2..2..4....2..3..3....1..2..4
..2..3..4....3..3..4....3..4..4....1..3..4....3..3..4....1..4..3....4..4..4
		

Links

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