A207180 Number of nX6 0..1 arrays avoiding 0 0 0 horizontally and 0 1 0 vertically

44, 1936, 44065, 981850, 23471595, 567046841, 13575513917, 324280404464, 7753960008192, 185490886984435, 4436906789153102, 106121193817646599, 2538197480774276123, 60709250545517745427, 1452061508622073819918

Offset

1,1

Comments

Column 6 of A207182

Links

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

Example

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

Crossrefs

Sequence in context: A181222 A188564 A207086 * A188751 A188871 A009988

Adjacent sequences: A207177 A207178 A207179 * A207181 A207182 A207183

Keyword

nonn

Author

R. H. Hardin Feb 15 2012

Status

approved