A283638 Number of 5Xn 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.

0, 142, 3729, 85469, 1185010, 19517898, 272974255, 3604990867, 47435044139, 593340785252, 7330968283591, 88773406395265, 1058150004752104, 12466473723260994, 145192561852215324, 1675488032105197802

Offset

1,2

Comments

Row 5 of A283634.

Links

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

R. H. Hardin, Empirical recurrence of order 63

Formula

Empirical recurrence of order 63 (see link above)

Example

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

Crossrefs

Cf. A283634.

Sequence in context: A259422 A219146 A200453 * A375331 A235457 A200557

Adjacent sequences: A283635 A283636 A283637 * A283639 A283640 A283641

Keyword

nonn

Author

R. H. Hardin, Mar 12 2017

Status

approved