A267266 Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north, northeast or northwest neighbors modulo 5 and the upper left element equal to 0.

1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 303, 6023, 96925, 1428753, 19082405, 238337055, 2823649207, 32155269155, 354779733589, 3815483693749, 40182530936197

Offset

1,10

Comments

Row 5 of A267264.

Links

Table of n, a(n) for n=1..21.

Example

Some solutions for n=12
..0..1..0..0..4..4..3..3..2..2..2..2....0..4..4..3..3..2..2..2..1..1..0..1
..1..1..1..0..0..4..4..3..3..3..2..2....0..0..4..4..3..3..3..2..2..1..1..1
..1..1..1..1..0..0..4..4..4..3..3..3....1..0..0..4..4..4..3..3..2..2..2..2
..2..2..2..1..1..0..0..4..4..4..3..3....1..1..0..0..0..4..4..3..3..3..2..2
..2..3..2..2..1..1..0..0..0..4..4..3....1..1..1..0..0..0..4..4..4..3..3..2

Crossrefs

Cf. A267264.

Sequence in context: A131273 A023021 A022651 * A077504 A086558 A090927

Adjacent sequences: A267263 A267264 A267265 * A267267 A267268 A267269

Keyword

nonn

Author

R. H. Hardin, Jan 12 2016

Status

approved