A201214 Number of nX6 0..3 arrays with every row and column running average nondecreasing rightwards and downwards

233, 12314, 512681, 18624423, 638359663, 21062625664, 671706552402, 20756983300265, 624562355419649, 18382517638082006, 531236200468061769, 15113072656159194185, 424027010031462876498

Offset

1,1

Comments

Column 6 of A201216

Links

Table of n, a(n) for n=1..13.

Example

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

Crossrefs

Sequence in context: A201035 A189454 A201834 * A232322 A264069 A269548

Adjacent sequences: A201211 A201212 A201213 * A201215 A201216 A201217

Keyword

nonn

Author

R. H. Hardin Nov 28 2011

Status

approved