A283631 Number of nX5 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.

2, 88, 2875, 61592, 1185010, 20051838, 317384829, 4754748994, 68462751532, 955500406758, 13010041583954, 173616639167456, 2278616911473726, 29489304434111462, 377108880886712165, 4772989815120393198

Offset

1,1

Comments

Column 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
..1..1..0..0..0. .0..1..0..1..0. .0..0..0..0..0. .1..0..0..0..1
..0..1..0..0..0. .0..0..1..0..0. .0..1..0..1..1. .1..1..0..0..1
..1..0..1..0..1. .1..0..1..0..1. .1..1..0..0..0. .1..0..0..1..0
..1..0..1..0..1. .0..0..1..1..0. .1..0..1..0..0. .1..0..1..0..0

Crossrefs

Cf. A283634.

Sequence in context: A058463 A364974 A166848 * A001904 A053950 A266182

Adjacent sequences: A283628 A283629 A283630 * A283632 A283633 A283634

Keyword

nonn

Author

R. H. Hardin, Mar 12 2017

Status

approved