A206575 Number of nX6 0..3 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal

3353, 11242609, 24071410239, 50835598921675, 106921561045262424, 224922074723556223280, 473233846073429226663536, 995612236558478493078872933, 2094486828658187985171032792568

Offset

1,1

Comments

Column 6 of A206577

Links

R. H. Hardin, Table of n, a(n) for n = 1..11

Example

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

Crossrefs

Sequence in context: A203782 A206978 A206972 * A207580 A207055 A251831

Adjacent sequences: A206572 A206573 A206574 * A206576 A206577 A206578

Keyword

nonn

Author

R. H. Hardin Feb 09 2012

Status

approved