A184562 Number of (n+1)X8 0..2 arrays with no 2X2 subblock summing to less than 4.

3935721, 6329171799, 7915660174974, 10868641315040295, 14500045352224438869, 19540724845064600039882, 26246732217663407375879655, 35294057223652471936332160677, 47442042992644990940725027802526

Offset: 1

Author

R. H. Hardin Jan 17 2011

Keywords

• nonn

Comments

Column 7 of A184564

Examples

			Some solutions for 3X8
..0..0..0..0..1..1..2..2....0..0..0..0..1..2..1..0....0..0..0..0..1..2..0..2
..2..2..2..2..1..2..1..1....2..2..2..2..2..1..1..2....2..2..2..2..2..2..2..2
..0..0..0..0..1..0..2..0....0..0..0..0..1..0..2..2....0..0..0..0..0..0..0..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..158