A183599 1/6 the number of (n+1)X6 0..2 arrays with every 2X2 subblock containing all three values.

2376, 78729, 2366412, 72592860, 2220901926, 68026656422, 2083981368760, 63854542807704, 1956721189681174, 59964037003007332, 1837667093496854518, 56318507579345070520, 1725998009645259021660, 52897152711871651813326

Offset: 1

Author

R. H. Hardin Jan 05 2011

Keywords

• nonn

Comments

Column 5 of A183603

Examples

			Some solutions with a(1,1)=0 for 3X6
..0..1..2..1..0..1....0..1..0..1..1..1....0..1..0..2..1..2....0..1..0..0..1..0
..2..2..0..0..2..2....2..2..0..2..0..2....1..2..1..0..1..0....2..0..2..1..2..2
..0..1..1..2..1..0....1..0..1..1..1..1....1..0..2..2..1..2....1..1..1..0..0..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..200