A266997 Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its west, northeast or northwest neighbor modulo 5 and the upper left element equal to 0.

24, 907, 67735, 6597969, 763867475, 98274481798, 13751142049027

Offset

1,1

Comments

Row 5 of A266994.

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Cf. A266994.

Sequence in context: A281778 A006147 A061236 * A359644 A001784 A172206

Adjacent sequences: A266994 A266995 A266996 * A266998 A266999 A267000

Keyword

nonn

Author

R. H. Hardin, Jan 08 2016

Status

approved