A267204 Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any north, southwest or northwest neighbors modulo 6 and the upper left element equal to 0.

1, 0, 0, 0, 0, 1, 7, 92, 1152, 9087, 44525, 149501, 382787, 893920, 2164458, 6927881, 49712828, 546657345, 5768069656, 51400505702

Offset

1,7

Comments

Row 6 of A267197.

Links

Table of n, a(n) for n=1..20.

Example

Some solutions for n=10
..0..0..1..1..2..3..3..4..4..5....0..1..2..2..3..3..4..5..0..0
..0..0..1..1..2..3..4..4..5..5....1..1..2..3..3..4..4..5..0..1
..0..1..1..2..2..3..4..4..5..5....1..2..2..3..4..4..5..5..0..1
..0..1..2..2..2..3..4..4..5..0....2..2..3..3..4..5..5..5..0..1
..0..1..2..2..3..3..4..5..5..0....2..2..3..4..4..5..5..0..0..1
..1..1..2..3..3..3..4..5..5..0....2..3..3..4..4..5..0..0..1..1

Crossrefs

Cf. A267197.

Sequence in context: A282041 A027955 A124654 * A367158 A278687 A292227

Adjacent sequences: A267201 A267202 A267203 * A267205 A267206 A267207

Keyword

nonn

Author

R. H. Hardin, Jan 11 2016

Status

approved