A267745 Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any west or northeast neighbors modulo 6 and the upper left element equal to 0.

120, 7, 82, 502, 4997, 55105, 649089, 7866419, 97477205, 1225988750, 15661687539, 203901398624

Offset

1,1

Comments

Row 6 of A267742.

Links

Table of n, a(n) for n=1..12.

Example

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

Crossrefs

Cf. A267742.

Sequence in context: A062829 A163598 A062690 * A267025 A127148 A228746

Adjacent sequences: A267742 A267743 A267744 * A267746 A267747 A267748

Keyword

nonn

Author

R. H. Hardin, Jan 20 2016

Status

approved