A221775 Number of nX3 arrays of occupancy after each element stays put or moves to some king-move neighbor, without move-in move-out left turns

8, 372, 16384, 703148, 30088757, 1287149604, 55062005315, 2355484567486, 100765156040153

Offset

1,1

Comments

Column 3 of A221776

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A193187 A240380 A038016 * A206690 A349114 A266920

Adjacent sequences: A221772 A221773 A221774 * A221776 A221777 A221778

Keyword

nonn

Author

R. H. Hardin Jan 25 2013

Status

approved