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A208168
Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically
1
31, 961, 6759, 46611, 258952, 1493661, 9072707, 53874293, 315713411, 1874906825, 11126711003, 65771372274, 389369462027, 2306918088206, 13657520785513, 80855461760683, 478802042582831, 2835088280044468, 16786245481948186
OFFSET
1,1
COMMENTS
Row 7 of A208164
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..1....1..0..0..1....1..1..1..0....1..1..1..0....0..1..1..0
..1..0..0..1....1..1..0..0....1..1..1..1....0..1..1..1....1..0..0..1
..1..0..0..1....1..1..0..0....0..0..1..1....0..0..1..1....1..1..1..1
..1..0..0..1....0..1..0..0....0..0..1..0....0..1..1..1....0..1..1..1
..1..0..0..1....0..1..0..0....0..0..1..1....0..1..1..1....1..0..0..1
..1..0..0..1....0..1..0..0....0..0..1..1....0..0..1..1....1..1..0..0
..1..0..0..1....0..1..0..0....0..0..1..1....0..1..1..1....0..1..0..0
CROSSREFS
Sequence in context: A207067 A207122 A207247 * A207441 A207431 A208373
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 24 2012
STATUS
approved