A221252 Number of nX5 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2

8, 392, 22268, 1319409, 78633756, 4684821704, 278802326676, 16577412686597, 985111139474492, 58519095228020616, 3475483474225610814, 206383882956736627050, 12254681900155763390448, 727625190336114167472388

Offset

1,1

Comments

Column 5 of A221255

Links

R. H. Hardin, Table of n, a(n) for n = 1..43

Example

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

Crossrefs

Sequence in context: A220785 A203368 A012825 * A165036 A185254 A347997

Adjacent sequences: A221249 A221250 A221251 * A221253 A221254 A221255

Keyword

nonn

Author

R. H. Hardin Jan 06 2013

Status

approved