A303082 Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

1, 168, 432, 3667, 34430, 409478, 4862916, 60442630, 764631608, 9669569563, 122749248476, 1560529225399, 19844842693550, 252421510589391, 3211301552676338, 40856246979685360, 519811697254457408

Offset

1,2

Comments

Column 6 of A303084.

Links

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

Example

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

Crossrefs

Cf. A303084.

Sequence in context: A158219 A273771 A210207 * A247721 A342427 A027679

Adjacent sequences: A303079 A303080 A303081 * A303083 A303084 A303085

Keyword

nonn

Author

R. H. Hardin, Apr 18 2018

Status

approved