A266496 Number of 5 X n arrays containing n copies of 0..5-1 with no element 1 greater than its north, west, northwest or northeast neighbor modulo 5 and the upper left element equal to 0.

9, 187, 8088, 475606, 34126530, 2913831633, 286927411662, 31264307869299

Offset

1,1

Comments

Row 5 of A266493.

Links

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

Example

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

Crossrefs

Cf. A266493.

Sequence in context: A274781 A293848 A351281 * A078101 A133556 A351333

Adjacent sequences: A266493 A266494 A266495 * A266497 A266498 A266499

Keyword

nonn

Author

R. H. Hardin, Dec 30 2015

Status

approved