A206875 Number of 6 X n 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.

37, 1369, 17737, 397221, 8373905, 159327093, 3254925997, 65503023421, 1306330464063, 26282885757023, 527346719280577, 10574042671627575, 212249791397406163, 4258527016456970551, 85440779581637659129

Offset

1,1

Comments

Row 6 of A206871.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..1..0..1..1....0..1..0..0....1..1..1..1....0..1..1..0....0..1..1..0
..0..1..1..0....0..1..0..1....0..1..1..1....1..0..1..0....0..0..1..1
..0..1..0..0....1..0..0..1....0..0..1..1....1..0..0..1....0..0..1..0
..1..0..0..1....1..0..0..1....1..0..1..0....1..0..0..1....0..0..1..0
..1..0..1..0....0..0..1..1....1..1..0..0....1..1..0..0....0..1..0..1
..1..1..1..0....0..1..1..0....0..1..0..0....1..1..1..0....0..1..0..1

Crossrefs

Cf. A206871.

Sequence in context: A223225 A262763 A188692 * A188505 A206881 A206998

Adjacent sequences: A206872 A206873 A206874 * A206876 A206877 A206878

Keyword

nonn

Author

R. H. Hardin, Feb 13 2012

Status

approved