A200970 Number of nX4 0..6 arrays with every row and column running average nondecreasing rightwards and downwards.

388, 37254, 3167295, 250149820, 18714498069, 1342587653727, 93360032845673, 6335655315992974, 421865904772827987, 27660730981017838471, 1790599737428642496028, 114654496418709581646953

Offset: 1

Author

R. H. Hardin Nov 25 2011

Keywords

• nonn

Comments

Column 4 of A200974

Examples

			Some solutions for n=3
..0..0..1..5....0..0..0..1....0..0..0..1....0..0..0..1....0..0..2..4
..0..1..1..5....0..1..2..6....0..1..2..5....0..0..3..5....0..0..2..4
..0..3..3..6....2..6..4..5....1..2..3..3....0..5..3..4....0..0..3..6
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..13