A303893 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero.

3, 313, 842, 7421, 29479, 200144, 992789, 5930552, 32529473, 183511110, 1040095115, 5814425752, 32991537449, 185215371545, 1046962946963, 5898040401117, 33274465102765, 187679674103195, 1058350295231955

Offset

1,1

Comments

Column 5 of A303896.

Links

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

R. H. Hardin, Empirical recurrence of order 92

Formula

Empirical recurrence of order 92 (see link above)

Example

Some solutions for n=5
..0..1..1..0..0. .0..0..1..1..1. .0..0..0..1..1. .0..1..1..1..0
..1..1..1..1..0. .1..0..0..0..0. .1..0..1..1..0. .1..1..0..0..0
..0..1..1..1..1. .0..1..0..0..1. .0..1..1..1..0. .1..0..0..0..1
..0..0..0..1..0. .1..1..1..1..0. .0..1..1..1..0. .0..0..1..1..0
..1..0..0..0..1. .1..0..0..1..1. .0..1..1..0..0. .0..1..1..1..1

Crossrefs

Cf. A303896.

Sequence in context: A316329 A062333 A222725 * A305285 A304898 A316580

Adjacent sequences: A303890 A303891 A303892 * A303894 A303895 A303896

Keyword

nonn

Author

R. H. Hardin, May 02 2018

Status

approved