A221816 Number of n X 5 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns.

0, 459, 7320, 854959, 35993876, 2428955613, 129447996326, 7724887856687, 436026216073506, 25287203918142223, 1447193400737482466, 83360775579090600519, 4786565078482676164476, 275268393979592262231620

Offset

1,2

Comments

Column 5 of A221817.

Links

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

Example

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

Crossrefs

Cf. A221817.

Sequence in context: A227754 A253527 A183964 * A048923 A329292 A252535

Adjacent sequences: A221813 A221814 A221815 * A221817 A221818 A221819

Keyword

nonn

Author

R. H. Hardin, Jan 26 2013

Status

approved