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A187962
Half the number of (n+2)X9 binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum
0
7626496, 86157696, 860108472, 7359939574, 98476432408
OFFSET
1,1
COMMENTS
Column 7 of A187964
EXAMPLE
Some solutions for 4X9 with a(1,1)=0
..0..0..0..0..0..1..1..1..1....0..0..0..0..0..0..1..0..0
..0..0..0..0..1..1..1..1..0....0..0..0..1..0..0..1..0..0
..0..0..1..1..1..1..1..1..0....0..0..0..0..1..1..0..0..0
..0..0..1..0..1..1..1..0..1....0..0..1..0..1..1..1..1..0
CROSSREFS
Sequence in context: A237156 A233605 A204803 * A080340 A192105 A233597
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 16 2011
STATUS
approved