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A206893
Number of 7Xn 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically
1
54, 2916, 82807, 2070564, 57268342, 1648854501, 47015346159, 1328156697136, 37521598580023, 1061970530807292, 30067564211434697, 851046751948225835, 24085315991411166967, 681659412649184727059, 19292878589062169424679
OFFSET
1,1
COMMENTS
Row 7 of A206889
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1..0....0..1..1..0....1..1..0..0....1..0..1..1....1..1..0..0
..0..1..1..1....1..0..1..1....0..0..0..1....1..1..1..1....1..1..0..0
..0..1..1..1....1..1..0..1....1..1..1..1....1..1..1..1....0..0..0..1
..0..1..1..0....1..1..1..0....1..0..1..1....1..1..1..1....1..1..1..1
..1..0..1..1....0..0..0..1....1..1..0..0....1..1..1..1....0..0..1..1
..1..1..0..1....1..1..1..1....0..0..1..1....1..0..1..1....1..1..0..0
..0..0..1..1....0..0..0..0....1..1..1..0....1..1..1..1....1..1..1..1
CROSSREFS
Sequence in context: A188521 A189262 A189700 * A188761 A207093 A188990
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 13 2012
STATUS
approved