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A204152
Number of (n+2)X9 0..2 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order
1
23538722, 169527242, 864266300, 4577683574, 25275772916, 138134688554, 770374556792, 4130467300382, 22550685062612, 121999878097538, 662599450745240, 3588969319485734, 19369358858520164, 104916399180100634
OFFSET
1,1
COMMENTS
Column 7 of A204153
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1..0..1..1..2..2..2....0..0..0..0..1..2..1..0..0
..2..0..1..1..1..1..1..2..1....1..0..0..1..0..1..2..0..1
..1..2..0..1..1..1..1..1..2....0..0..1..0..1..0..0..2..2
..0..0..2..0..1..1..1..1..0....0..1..0..1..0..0..0..0..2
..0..2..0..2..0..1..1..1..1....1..0..1..0..0..0..0..0..0
..2..2..0..0..2..0..1..1..1....1..1..0..0..1..0..0..0..0
CROSSREFS
Sequence in context: A104951 A235971 A187551 * A132906 A234342 A104922
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 11 2012
STATUS
approved