A265666 Number of 5Xn arrays containing n copies of 0..5-1 with no element plus any horizontal or vertical neighbor equal to 5-1.

48, 4912, 951040, 234168152, 66434312368, 20573458824776, 6752109661033720, 2310220535915090896

Offset

1,1

Comments

Row 5 of A265663.

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Cf. A265663.

Sequence in context: A321940 A364174 A222846 * A114721 A057868 A269179

Adjacent sequences: A265663 A265664 A265665 * A265667 A265668 A265669

Keyword

nonn

Author

R. H. Hardin, Dec 12 2015

Status

approved