A297517 Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 3 neighboring 1s.

9, 193, 1408, 15896, 193087, 1995817, 22251457, 249462938, 2728125667, 30217297422, 334834818751, 3695503259688, 40873192858177, 452087071472741, 4997131986265218, 55255000635226041, 610978405913684223

Offset

1,1

Comments

Column 6 of A297519.

Links

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

Example

Some solutions for n=5
..0..1..1..1..0..0. .0..0..0..0..0..0. .0..0..0..0..0..0. .0..0..0..1..0..1
..0..0..0..1..0..0. .0..1..0..0..0..1. .0..1..0..0..0..0. .0..0..0..0..1..0
..0..0..0..0..0..0. .0..0..1..0..1..0. .1..0..0..0..0..0. .0..1..0..0..0..1
..1..1..1..1..1..0. .0..0..0..0..0..0. .1..0..1..1..0..0. .1..1..0..1..0..1
..0..0..1..1..0..1. .1..1..0..0..0..0. .1..1..0..1..0..0. .0..1..0..0..1..1

Crossrefs

Cf. A297519.

Sequence in context: A261826 A184688 A189178 * A116877 A196959 A266485

Adjacent sequences: A297514 A297515 A297516 * A297518 A297519 A297520

Keyword

nonn

Author

R. H. Hardin, Dec 31 2017

Status

approved