A221692 Number of nX6 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, without consecutive moves in the same direction

60, 92660, 74531185, 64509677154, 55433846144035, 47681199145323119, 41016076097898190730, 35282822653645381320038, 30350969754572497969358415, 26108492570724327368100591178, 22459031054635514974048155933027

Offset

1,1

Comments

Column 6 of A221693

Links

R. H. Hardin, Table of n, a(n) for n = 1..25

Example

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

Crossrefs

Sequence in context: A003788 A222019 A123378 * A265714 A166384 A180261

Adjacent sequences: A221689 A221690 A221691 * A221693 A221694 A221695

Keyword

nonn

Author

R. H. Hardin Jan 22 2013

Status

approved