A221105 Number of nX4 arrays of occupancy after each element moves to some king-move neighbor, without 2-loops

0, 1570, 275487, 50444759, 8577221762, 1451267766627, 244456283406264

Offset

1,2

Comments

Column 4 of A221106

Links

Table of n, a(n) for n=1..7.

Example

Some solutions for n=3
..0..4..3..0....0..0..2..0....0..4..1..0....0..2..3..0....0..1..2..0
..0..2..0..1....0..2..2..3....2..0..3..0....1..0..2..1....4..1..0..3
..0..2..0..0....1..0..2..0....0..0..2..0....0..0..2..1....0..0..0..1

Crossrefs

Sequence in context: A035765 A107561 A260144 * A236261 A252073 A202465

Adjacent sequences: A221102 A221103 A221104 * A221106 A221107 A221108

Keyword

nonn

Author

R. H. Hardin Jan 02 2013

Status

approved