A207279 Number of nX4 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal

214, 45796, 4686270, 553738958, 65396633910, 7655462652196, 895547972671398, 104837508468573926, 12276503049659515050, 1437524784977879770604, 168318455922909141130486, 19708184921537975123608340

Offset

1,1

Comments

Column 4 of A207283

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A184600 A278093 A259015 * A207475 A207531 A200901

Adjacent sequences: A207276 A207277 A207278 * A207280 A207281 A207282

Keyword

nonn

Author

R. H. Hardin Feb 16 2012

Status

approved