A207447 Number of 7Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically

35, 1225, 14743, 165626, 2078416, 24609889, 284247216, 3316383098, 38630942068, 448234580146, 5204017590681, 60440346257235, 701591767463860, 8143643192312255, 94537663920104487, 1097406693263337001

Offset

1,1

Comments

Row 7 of A207442

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..0..0..0....0..0..0..0....0..0..0..0
..1..1..1..1....1..1..0..1....0..1..1..0....0..0..0..0....1..1..1..1
..1..1..1..1....0..0..0..0....1..0..0..0....0..0..0..0....0..1..1..1
..1..1..1..1....1..1..0..1....1..1..1..0....0..0..0..0....1..0..0..0
..1..1..1..0....0..0..0..0....1..0..0..0....0..0..0..0....0..1..1..1
..1..0..1..1....1..1..0..1....1..1..1..0....0..0..0..0....1..1..0..0
..1..1..0..1....0..0..0..0....1..1..1..0....0..0..0..0....0..1..1..1

Crossrefs

Sequence in context: A208697 A207504 A207965 * A207745 A207722 A224175

Adjacent sequences: A207444 A207445 A207446 * A207448 A207449 A207450

Keyword

nonn

Author

R. H. Hardin Feb 17 2012

Status

approved