A223040 Number of nX5 0..3 arrays with no more than floor(nX5/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

34, 17356, 8580619, 7361951209, 3829674402996, 3416064879339302, 1823295483454946374, 1658639508054654478479, 898959521235518459497060, 827155543754315639990554261

Offset: 1

Author

R. H. Hardin Mar 12 2013

Keywords

• nonn

Comments

Column 5 of A223041

Examples

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