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A207492
Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically
1
35, 1225, 2233, 11306, 39050, 89417, 268275, 667760, 1691526, 4324858, 10910668, 28038606, 71784122, 186198243, 482642047, 1259170885, 3300248079, 8616047712, 22660486326, 59449698479, 156019165327, 410863919802, 1077513243234
OFFSET
1,1
COMMENTS
Row 7 of A207488
LINKS
EXAMPLE
Some solutions for n=4
..1..1..1..1....0..1..0..0....0..0..1..0....0..1..0..0....1..1..0..1
..0..0..1..0....0..1..0..0....1..1..0..0....0..1..0..1....0..1..0..1
..0..0..1..0....0..1..0..0....0..0..1..0....1..1..1..0....1..1..1..1
..1..1..1..1....0..1..0..1....0..1..0..0....0..1..0..0....0..1..0..1
..0..0..1..0....1..1..0..0....1..0..0..1....0..1..0..0....0..1..0..1
..0..0..1..0....0..1..0..1....0..0..1..0....1..1..1..0....0..1..0..1
..0..0..1..0....0..1..0..0....1..1..0..0....0..1..0..0....0..1..0..1
CROSSREFS
Sequence in context: A218737 A126158 A200724 * A207889 A208112 A208844
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 18 2012
STATUS
approved