A222377 Number of nX6 0..3 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..3 order.

14, 234, 8111, 342953, 16985929, 963154789, 61522684225, 4169901076870, 296032656700259, 21407365398250792

Offset: 1

Author

R. H. Hardin Feb 17 2013

Keywords

• nonn

Comments

Column 6 of A222378

Examples

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