A283861 Number of 5Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors.

32, 1024, 19776, 448490, 10741381, 247708452, 5724272337, 133133661082, 3090402764188, 71694878474173, 1664094030997882, 38623974565883167, 896398684460040006, 20804458669651490859, 482852974736791450712

Offset

1,1

Comments

Row 5 of A283857.

Links

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

R. H. Hardin, Empirical recurrence of order 74

Formula

Empirical recurrence of order 74 (see link above)

Example

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

Crossrefs

Cf. A283857.

Sequence in context: A189107 A181216 A297378 * A223566 A227593 A171306

Adjacent sequences: A283858 A283859 A283860 * A283862 A283863 A283864

Keyword

nonn

Author

R. H. Hardin, Mar 17 2017

Status

approved