A221104 Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, without 2-loops

0, 141, 6153, 275487, 11620928, 486820079, 20299745484, 845360036180, 35183709646965

Offset

1,2

Comments

Column 3 of A221106

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A186955 A005849 A172633 * A202045 A066623 A302331

Adjacent sequences: A221101 A221102 A221103 * A221105 A221106 A221107

Keyword

nonn

Author

R. H. Hardin Jan 02 2013

Status

approved