A266881 Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its north, southwest or northwest neighbor modulo 5 and the upper left element equal to 0.

9, 351, 33529, 4555903, 763867475, 138332628493, 25681615835531, 4850980527140722

Offset

1,1

Comments

Row 5 of A266878.

Links

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

Example

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

Crossrefs

Cf. A266878.

Sequence in context: A225328 A203745 A012812 * A119756 A222697 A063068

Adjacent sequences: A266878 A266879 A266880 * A266882 A266883 A266884

Keyword

nonn

Author

R. H. Hardin, Jan 05 2016

Status

approved