A266044 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any vertical or antidiagonal neighbor equal to 4-1.

8, 104, 2408, 74416, 2603736, 97230000, 3787995368, 152165487408, 6256996794664, 262070255471888, 11141539251200152, 479536056600705392, 20854033903834109000, 914926763605653165712, 40446653776796028311816

Offset

1,1

Comments

Row 4 of A266042.

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

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

Crossrefs

Cf. A266042.

Sequence in context: A112121 A141383 A034300 * A359801 A266040 A354173

Adjacent sequences: A266041 A266042 A266043 * A266045 A266046 A266047

Keyword

nonn

Author

R. H. Hardin, Dec 20 2015

Status

approved