A183601 1/6 the number of (n+1)X8 0..2 arrays with every 2X2 subblock containing all three values.

47040, 4187499, 325834456, 26108240340, 2083981368760, 166653005250320, 13330538464876654, 1066653925785997106, 85362766209466105480, 6832162755933155019668, 546857478389624808674648

Offset: 1

Author

R. H. Hardin Jan 05 2011

Keywords

• nonn

Comments

Column 7 of A183603

Examples

			Some solutions with a(1,1)=0 for 3X8
..0..0..0..1..0..1..0..2....0..0..0..1..0..2..1..0....0..0..0..0..0..1..2..1
..2..1..2..1..2..1..2..1....2..1..2..2..1..0..1..2....2..1..2..1..2..0..2..0
..1..0..0..0..2..0..1..0....1..0..0..1..0..2..0..2....0..1..0..0..0..1..1..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..118