A266079 Number of nX6 integer arrays with each element equal to the number of horizontal and vertical neighbors differing from itself by exactly one.

2, 4, 12, 26, 29, 78, 146, 364, 783, 1773, 4170, 9548, 21795, 50340, 116807, 269080, 621237, 1433845, 3314057, 7645131, 17658119, 40801550, 94240870, 217596976, 502694842, 1161236323, 2681811462, 6194408530, 14310237182, 33054393201

Offset

1,1

Comments

Column 6 of A266081.

Links

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

Example

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

Crossrefs

Cf. A266081.

Sequence in context: A048148 A080375 A136253 * A284125 A045678 A236002

Adjacent sequences: A266076 A266077 A266078 * A266080 A266081 A266082

Keyword

nonn

Author

R. H. Hardin, Dec 20 2015

Status

approved