A217225 Number of nX5 arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no 2-loops and with no occupancy greater than 2

0, 190, 22914, 2662621, 293153088, 31887740915, 3446638551402, 371468654790102, 39975110751543690, 4298382440723846915, 461983943050928774750, 49641131314106710940001, 5333311194358170114111884

Offset

1,2

Comments

Column 5 of A217227

Links

Table of n, a(n) for n=1..13.

Example

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

Crossrefs

Sequence in context: A133241 A229903 A221386 * A369394 A207211 A207205

Adjacent sequences: A217222 A217223 A217224 * A217226 A217227 A217228

Keyword

nonn

Author

R. H. Hardin Jan 07 2013

Status

approved