A283782 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 two elements.

0, 564, 43793, 2343698, 109281786, 4572654404, 179632502674, 6737192690688, 244126676935480, 8613145295952112, 297460336039982839, 10094963044660987046, 337635823136300866898, 11153955582473959225840

Offset

1,2

Comments

Column 6 of A283784.

Links

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

Example

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

Crossrefs

Cf. A283784.

Sequence in context: A252286 A252285 A206131 * A203781 A189352 A005953

Adjacent sequences: A283779 A283780 A283781 * A283783 A283784 A283785

Keyword

nonn

Author

R. H. Hardin, Mar 16 2017

Status

approved