A183602 1/6 the number of (n+1)X9 0..2 arrays with every 2X2 subblock containing all three values.

209304, 30539367, 3823553752, 495215814566, 63854542807704, 8251614370134644, 1066653925785997106, 137936054886331468840, 17840841964756696807680, 2307848389145766144487866, 298559730522953008074518020

Offset: 1

Author

R. H. Hardin Jan 05 2011

Keywords

• nonn

Comments

Column 8 of A183603

Examples

			Some solutions with a(1,1)=0 for 3X9
..0..0..0..0..0..1..1..1..0....0..0..0..0..0..0..0..2..0
..1..2..1..2..1..2..0..2..1....1..2..1..2..1..2..1..1..2
..2..0..0..0..0..0..1..2..0....0..2..0..0..1..0..2..0..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..40