A207288 Number of nX6 0..3 arrays avoiding the pattern z-2 z-1 z in any row or column

3636, 13220496, 39940889449, 122968569630173, 376758439920954387, 1155689817715438142804, 3544370001734720482621378, 10870716794656280844965877086, 33340605113162704228535908498097

Offset

1,1

Comments

Column 6 of A207290

Links

R. H. Hardin, Table of n, a(n) for n = 1..83

Example

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

Crossrefs

Sequence in context: A206844 A206836 A206898 * A239992 A253498 A253491

Adjacent sequences: A207285 A207286 A207287 * A207289 A207290 A207291

Keyword

nonn

Author

R. H. Hardin Feb 16 2012

Status

approved