A221808 Number of nX5 arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without move-in move-out straight through or left turns

0, 1016, 32636, 5873327, 462706496, 52282482444, 4939696997263, 508798977892503

Offset

1,2

Comments

Column 5 of A221809

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A167807 A118879 A023083 * A202905 A213314 A054035

Adjacent sequences: A221805 A221806 A221807 * A221809 A221810 A221811

Keyword

nonn

Author

R. H. Hardin Jan 26 2013

Status

approved