A185990 1/128 the number of (n+2)X8 binary arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace

4838, 462288, 24122605, 1458949494, 86146689788, 5140797159777, 306579200951455, 18279829286165897, 1090083256585651730, 65003967929716099336, 3876360028556059733488, 231157367302985093575811

Offset

1,1

Comments

Column 6 of A185993

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A153408 A281885 A183589 * A215949 A031838 A331664

Adjacent sequences: A185987 A185988 A185989 * A185991 A185992 A185993

Keyword

nonn

Author

R. H. Hardin Feb 08 2011

Status

approved