A221759 Number of 5Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns

0, 16, 0, 1397, 4848, 311288, 3143356, 95371405, 1408726936, 32834969845, 567338379368, 11889622353917, 219617227173464, 4402515591150392, 83668550304232336, 1646134713660117417, 31665136198081295926

Offset

1,2

Comments

Row 5 of A221755

Links

R. H. Hardin, Table of n, a(n) for n = 1..22

Example

Some solutions for n=4
..0..2..1..1....0..2..1..1....0..2..2..1....0..2..1..2....1..1..1..1
..1..1..1..1....1..1..2..1....1..0..1..1....1..0..2..0....0..2..0..2
..1..1..0..2....0..1..2..0....0..2..2..1....0..2..1..1....2..0..2..0
..1..1..2..0....0..2..1..1....1..1..0..1....1..1..2..1....0..2..1..1
..2..0..1..1....1..1..2..0....1..1..2..0....1..0..1..1....1..1..2..0

Crossrefs

Sequence in context: A198804 A274377 A221380 * A111979 A309984 A173436

Adjacent sequences: A221756 A221757 A221758 * A221760 A221761 A221762

Keyword

nonn

Author

R. H. Hardin Jan 24 2013

Status

approved