A221327 Number of nX7 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2

239, 337274, 487335857, 711858713069, 1043094530574190, 1529318909534974055, 2242286238164144345340, 3287567392078817733944559, 4820042020725407512778215418, 7066803372580254890277247530238

Offset

1,1

Comments

Column 7 of A221328

Links

R. H. Hardin, Table of n, a(n) for n = 1..14

Example

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

Crossrefs

Sequence in context: A223830 A223974 A208681 * A221302 A072173 A282230

Adjacent sequences: A221324 A221325 A221326 * A221328 A221329 A221330

Keyword

nonn

Author

R. H. Hardin Jan 11 2013

Status

approved