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

1,1

Comments

Column 5 of A223041

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A328293 A220870 A281539 * A200461 A287052 A177324

Adjacent sequences: A223037 A223038 A223039 * A223041 A223042 A223043

Keyword

nonn

Author

R. H. Hardin Mar 12 2013

Status

approved