A221300 Number of nX5 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, with no occupancy greater than 2

41, 7305, 1388449, 270434991, 53074198285, 10441043545431, 2055191230733819, 404558715308586615, 79631428749088948978, 15673309615820170766551, 3084736188812654258436809, 607104281948887764280719305

Offset

1,1

Comments

Column 5 of A221303

Links

R. H. Hardin, Table of n, a(n) for n = 1..15

Example

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

Crossrefs

Sequence in context: A208255 A221325 A104301 * A221377 A160477 A221344

Adjacent sequences: A221297 A221298 A221299 * A221301 A221302 A221303

Keyword

nonn

Author

R. H. Hardin Jan 09 2013

Status

approved