A207531 Number of nX4 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column

214, 45796, 6758694, 1066263778, 166743944836, 26097329476130, 4082668526457918, 638759164201438766, 99937413499455220346, 15635820994590324604534, 2446316169346302177277972

Offset

1,1

Comments

Column 4 of A207535

Links

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

Example

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

Crossrefs

Sequence in context: A259015 A207279 A207475 * A200901 A268547 A202319

Adjacent sequences: A207528 A207529 A207530 * A207532 A207533 A207534

Keyword

nonn

Author

R. H. Hardin Feb 18 2012

Status

approved