A200775 Number of nX6 0..2 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

6, 31, 217, 1806, 13422, 91755, 633413, 4472626, 30905995, 209517906, 1388328518, 9240921228, 61120602235, 401793563633, 2619241322237, 17009669381881, 110033650331158, 709134941588286

Offset

1,1

Comments

Column 6 of A200777

Links

Table of n, a(n) for n=1..18.

Example

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

Crossrefs

Sequence in context: A362387 A121754 A351818 * A244255 A299550 A208594

Adjacent sequences: A200772 A200773 A200774 * A200776 A200777 A200778

Keyword

nonn

Author

R. H. Hardin Nov 22 2011

Status

approved