A222910 Number of 5Xn 0..3 arrays with no more than floor(5Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

51, 411, 4909, 180203, 2117424, 115414184, 1616042692, 101812249660, 1647125896526, 116484133514908, 2045481314796291, 151436398227691009, 2739472417059940802, 205949331213920597815

Offset: 1

Author

R. H. Hardin Mar 09 2013

Keywords

• nonn

Comments

Row 5 of A222906

Examples

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