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A183602
1/6 the number of (n+1)X9 0..2 arrays with every 2X2 subblock containing all three values
1
209304, 30539367, 3823553752, 495215814566, 63854542807704, 8251614370134644, 1066653925785997106, 137936054886331468840, 17840841964756696807680, 2307848389145766144487866, 298559730522953008074518020
OFFSET
1,1
COMMENTS
Column 8 of A183603
LINKS
EXAMPLE
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
CROSSREFS
Sequence in context: A282989 A233663 A232136 * A015376 A216593 A172825
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved