A203283 Number of nX6 binary arrays with every element neighboring horizontally or vertically both a 0 and a 1

0, 100, 1444, 40000, 996004, 26193924, 674752576, 17603451684, 457011152676, 11888538496576, 309060970816900, 8036293796762884, 208947800458151056, 5432872929232579216, 141259599472815148900, 3672887151894653915524

Offset

1,2

Comments

Column 6 of A203285

Links

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

Example

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

Crossrefs

Sequence in context: A129725 A167043 A274943 * A231139 A295589 A114777

Adjacent sequences: A203280 A203281 A203282 * A203284 A203285 A203286

Keyword

nonn

Author

R. H. Hardin Dec 31 2011

Status

approved