A184474 1/6 the number of (n+2)X8 0..2 arrays with each 3X3 subblock containing one of one value, four of another, and four of the last.

161739, 200215, 249953, 322275, 520289, 904411, 1782585, 4808779, 13539521, 40005219

Offset: 1

Author

R. H. Hardin Jan 15 2011

Keywords

• nonn

Comments

Column 6 of A184477

Examples

			Some solutions with a(1,1)=0 for 4X8
..0..0..1..0..1..2..1..1....0..0..2..0..1..2..0..1....0..1..2..0..1..1..0..0
..0..1..2..1..0..1..0..1....0..1..0..1..1..1..0..1....0..0..1..0..1..1..0..1
..1..1..0..0..1..0..0..0....1..1..1..0..0..0..1..0....0..1..1..0..0..2..0..1
..0..0..1..0..1..2..1..1....0..0..2..0..1..2..0..1....0..1..2..0..1..1..0..0