A267346 Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any north, west or southwest neighbors modulo 6 and the upper left element equal to 0.

1, 1, 2, 2, 4, 135, 2192, 18140, 96291, 401459, 1594603, 7089502, 45031108, 518872408, 7088206956, 81255284697, 741934496544

Offset

1,3

Comments

Row 6 of A267338.

Links

Table of n, a(n) for n=1..17.

Example

Some solutions for n=6
..0..1..2..3..4..5....0..1..2..3..3..4....0..1..1..2..3..4....0..0..1..2..3..4
..1..2..3..4..5..0....1..2..2..3..4..5....0..1..1..2..3..4....0..1..2..3..4..5
..1..2..3..4..5..0....1..2..3..4..5..0....0..1..2..3..4..5....1..2..3..4..5..5
..1..2..3..4..5..0....2..3..4..5..0..1....1..2..3..4..5..0....1..2..3..4..5..0
..2..3..4..5..0..1....3..4..5..0..0..1....2..3..4..5..5..0....1..2..3..4..5..0
..3..4..5..0..1..2....4..5..5..0..1..2....2..3..4..5..5..0....2..3..4..5..0..1

Crossrefs

Cf. A267338.

Sequence in context: A294184 A114695 A134084 * A372238 A264933 A012858

Adjacent sequences: A267343 A267344 A267345 * A267347 A267348 A267349

Keyword

nonn

Author

R. H. Hardin, Jan 13 2016

Status

approved