A201068 Number of nX4 0..6 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

35, 77, 2611, 22440, 43308, 1127514, 175865, 20393189, 14766300, 158314010, 495900141, 452698962, 6176064188, 493804760, 39573007249, 18657025428, 128820947525, 280570465208, 193035367346, 1994641001437, 119475251989

Offset: 1

Author

R. H. Hardin Nov 26 2011

Keywords

• nonn

Comments

Column 4 of A201072

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..33