A208163 Number of nX7 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically

28, 784, 4706, 28681, 222487, 1474641, 9072707, 57903614, 364876262, 2242331814, 13768713631, 84428280229, 514353352557, 3124595619191, 18960957925634, 114849976141130, 694688437603860, 4198845405962339, 25361823055909609

Offset

1,1

Comments

Column 7 of A208164

Links

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

Example

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

Crossrefs

Sequence in context: A207789 A207304 A207917 * A207959 A267785 A223496

Adjacent sequences: A208160 A208161 A208162 * A208164 A208165 A208166

Keyword

nonn

Author

R. H. Hardin Feb 24 2012

Status

approved