A208033 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically

2, 16, 102, 961, 21147, 811801, 44918280, 4186478209, 714320063886, 207770920176121, 99259943862610227, 80457895275392565121, 112399424925446158169479, 266845510437068945897046016

Offset

1,1

Comments

Diagonal of A208039

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

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

Crossrefs

Sequence in context: A267713 A207746 A207248 * A208159 A208282 A207236

Adjacent sequences: A208030 A208031 A208032 * A208034 A208035 A208036

Keyword

nonn

Author

R. H. Hardin Feb 22 2012

Status

approved