A200983 Number of n X n 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

5, 10, 92, 1225, 4919, 752271, 29555346, 1278883650, 65182166083, 731587297275

Offset: 1

Author

R. H. Hardin Nov 25 2011

Keywords

• nonn

Comments

Diagonal of A200990

Examples

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