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A206939
Number of 6Xn 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically
1
33, 1089, 9055, 170409, 2967939, 40316253, 659747611, 10405676997, 157403120837, 2479765407533, 38584141407985, 596657906957549, 9306402002435837, 144634043653494289, 2246314891033601445, 34949152336387277125
OFFSET
1,1
COMMENTS
Row 6 of A206936
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1..1....0..1..1..0....0..0..1..0....0..0..1..0....0..1..1..0
..1..0..1..1....1..1..0..1....0..1..0..1....0..1..1..1....0..1..0..1
..0..1..0..1....0..0..1..0....1..0..1..0....1..0..1..0....0..0..1..0
..1..0..0..1....1..1..0..0....0..1..0..0....0..0..1..1....0..1..0..0
..0..1..1..0....0..0..1..1....0..0..1..1....1..1..1..0....1..0..0..1
..1..0..0..1....1..1..0..0....0..1..0..0....0..0..1..0....0..0..1..0
CROSSREFS
Sequence in context: A170752 A132469 A200441 * A188604 A188611 A188848
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 13 2012
STATUS
approved