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A187644
Number of (n+2)X7 0..2 arrays with each 3X3 subblock having sum 9
0
3703651, 9368309, 24351579, 67476109, 234213387
OFFSET
1,1
COMMENTS
Column 5 of A187645
EXAMPLE
Some solutions for 4X7
..0..1..2..0..1..1..0....0..1..2..1..2..2..0....0..0..2..0..2..1..1
..0..0..1..1..1..2..0....0..2..2..0..2..1..1....0..2..1..1..0..2..0
..1..2..2..0..1..2..1....1..1..0..0..0..1..0....1..2..1..0..2..1..0
..0..1..2..0..1..1..0....1..0..2..2..1..2..1....0..0..2..0..2..1..1
CROSSREFS
Sequence in context: A080659 A328215 A216002 * A136287 A254496 A254489
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 12 2011
STATUS
approved