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A208500
Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically
1
42, 1764, 1728, 5436, 13806, 37430, 111328, 286754, 844200, 2336928, 6407688, 18684540, 50681028, 145645192, 408090270, 1135228896, 3261392100, 8999952300, 25648313760, 72191962584, 201563085152, 574718422958, 1602200548928
OFFSET
1,1
COMMENTS
Column 7 of A208501
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1..1..1..1..1....0..1..1..1..0..1..1....1..0..1..0..1..1..0
..1..0..1..0..1..0..1....0..1..0..1..0..1..0....0..1..1..0..1..0..1
..1..1..0..1..0..1..0....1..0..1..0..1..0..1....0..1..0..1..0..1..1
..0..1..0..1..1..1..1....1..1..1..1..1..1..1....1..0..1..1..1..1..0
CROSSREFS
Sequence in context: A218744 A158727 A208779 * A207588 A207844 A206986
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 27 2012
STATUS
approved