A283519 Number of nX5 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.

0, 28, 2763, 113984, 4069571, 136572268, 4331276717, 132684847054, 3961612505725, 115959380822064, 3341257551257359, 95044914636370005, 2674780297078876521, 74591845346350588784, 2063897837020442688904

Offset

1,2

Comments

Column 5 of A283522.

Links

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

Example

Some solutions for n=4
..1..1..0..0..1. .0..0..0..1..0. .1..0..1..1..0. .0..1..1..1..0
..0..1..1..1..0. .0..0..1..1..0. .1..0..1..1..1. .1..1..0..1..1
..1..0..1..1..0. .0..1..1..0..1. .0..0..1..0..1. .0..1..0..1..1
..0..1..1..0..1. .0..0..1..1..0. .1..1..0..0..0. .0..1..1..0..0

Crossrefs

Cf. A283522.

Sequence in context: A103660 A317799 A275654 * A284770 A107444 A277657

Adjacent sequences: A283516 A283517 A283518 * A283520 A283521 A283522

Keyword

nonn

Author

R. H. Hardin, Mar 09 2017

Status

approved