A201137 Number of nX3 0..5 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

20, 5, 402, 117, 5252, 758, 35810, 4788, 182640, 18486, 743288, 78155, 2551706, 217720, 7481114, 653018, 20218442, 1605125, 49306390, 3853884, 111522844, 8139750, 238718470, 17696623, 483325794, 33393124, 928163494, 64732125

Offset

1,1

Comments

Column 3 of A201142

Links

R. H. Hardin, Table of n, a(n) for n = 1..74

Example

Some solutions for n=8
..0..0..2....0..0..2....0..0..1....0..0..1....0..0..1....0..1..2....0..0..1
..0..0..2....0..1..2....0..0..2....0..0..2....0..2..2....0..1..4....0..0..3
..1..2..3....0..2..3....1..1..3....1..1..3....0..2..4....0..1..4....1..2..3
..1..3..4....1..2..3....1..2..3....1..2..4....1..3..4....0..1..4....1..2..4
..1..3..5....1..3..3....2..2..5....2..3..4....1..3..4....2..3..4....1..3..5
..1..4..5....1..4..4....3..3..5....2..3..4....1..3..5....2..3..5....2..4..5
..2..4..5....4..5..5....4..4..5....3..4..5....2..3..5....2..3..5....2..4..5
..3..4..5....4..5..5....4..4..5....5..5..5....4..5..5....3..5..5....3..4..5

Crossrefs

Sequence in context: A068612 A233820 A040387 * A040385 A161997 A274458

Adjacent sequences: A201134 A201135 A201136 * A201138 A201139 A201140

Keyword

nonn

Author

R. H. Hardin, Nov 27 2011

Status

approved