A207281 Number of nX6 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal

2902, 8421604, 6979630118, 7655462652196, 8271975196175318

Offset

1,1

Comments

Column 6 of A207283

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A340201 A235102 A252267 * A207477 A207533 A054828

Adjacent sequences: A207278 A207279 A207280 * A207282 A207283 A207284

Keyword

nonn

Author

R. H. Hardin Feb 16 2012

Status

approved