A189160 Number of nX8 binary arrays without the pattern 0 0 1 1 diagonally, vertically or horizontally.

177, 31329, 5545233, 507947896, 48083827685, 4101554902927, 327166323321331, 25828698626846656, 1988132110003598299, 151712463019974271421, 11512137558937549516129, 869513813648725138555115

Offset

1,1

Comments

Column 8 of A189161

Links

R. H. Hardin, Table of n, a(n) for n = 1..39

Example

Some solutions for 4X8
..0..0..0..0..0..1..0..0....0..0..0..1..0..1..0..0....0..0..0..0..0..0..0..1
..0..0..0..1..0..0..0..1....0..0..0..0..0..1..0..0....0..0..1..0..1..0..0..0
..0..0..0..0..1..0..0..0....0..0..0..1..0..1..0..1....0..0..0..0..0..0..0..0
..0..0..0..0..0..1..0..0....0..0..0..0..0..1..0..0....0..0..0..1..0..0..0..0

Crossrefs

Sequence in context: A069398 A189910 A189904 * A053018 A046436 A114081

Adjacent sequences: A189157 A189158 A189159 * A189161 A189162 A189163

Keyword

nonn

Author

R. H. Hardin, Apr 17 2011

Status

approved