A221360 Number of nX5 arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, with no 2-loops and with no occupancy greater than 2

0, 2088, 410571, 93433746, 18970881500, 3872954657964, 786996595093490, 160119440729359632, 32584677552562837495, 6632852849038384025825

Offset

1,2

Comments

Column 5 of A221361

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A250076 A255146 A293106 * A106720 A179124 A206606

Adjacent sequences: A221357 A221358 A221359 * A221361 A221362 A221363

Keyword

nonn

Author

R. H. Hardin Jan 12 2013

Status

approved