A283724 Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.

0, 1032, 56106, 2258212, 83987692, 2938694472, 99246546144, 3267618010712, 105565418525004, 3361146348020960, 105782383857436330, 3297885696243120040, 102011782806299147034, 3134659055255537785816, 95779471363270179461976

Offset

1,2

Comments

Column 6 of A283726.

Links

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

Example

Some solutions for n=3
..1..1..0..1..0..0. .0..1..1..0..0..1. .0..0..1..1..1..1. .1..1..0..1..0..1
..1..1..0..0..0..0. .0..0..0..1..0..1. .1..0..1..0..0..0. .1..0..0..1..1..0
..1..0..0..0..1..1. .1..1..1..1..0..1. .0..0..0..1..0..0. .1..1..0..0..1..0

Crossrefs

Cf. A283726.

Sequence in context: A035046 A282357 A224428 * A168225 A282576 A122716

Adjacent sequences: A283721 A283722 A283723 * A283725 A283726 A283727

Keyword

nonn

Author

R. H. Hardin, Mar 15 2017

Status

approved