A283414 Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.

128, 13624, 1030788, 90803472, 7790355688, 668024193788, 57400505786420, 4929074298340916, 423301606760080340, 36352878721804916656, 3121940940470892045344, 268108920151534075635600

Offset

1,1

Comments

Column 7 of A283415.

Links

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

Example

Some solutions for n=2
..0..1..0..1..0..0..0. .0..1..0..0..0..0..1. .1..0..1..0..0..0..1
..0..0..0..1..1..1..1. .0..1..0..1..0..0..0. .0..0..1..1..0..1..1

Crossrefs

Cf. A283415.

Sequence in context: A264095 A239190 A283856 * A184760 A228985 A282315

Adjacent sequences: A283411 A283412 A283413 * A283415 A283416 A283417

Keyword

nonn

Author

R. H. Hardin, Mar 07 2017

Status

approved