A305773 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

16, 192, 1096, 7528, 51586, 362200, 2553685, 18030904, 127390570, 900455984, 6365696123, 45002980493, 318160918881, 2249356861803, 15902693060757, 112430335547115, 794871406576647, 5619663671186623, 39730477666373826

Offset

1,1

Comments

Column 5 of A305776.

Links

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

Example

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

Crossrefs

Cf. A305776.

Sequence in context: A304307 A316206 A302298 * A317122 A230832 A305590

Adjacent sequences: A305770 A305771 A305772 * A305774 A305775 A305776

Keyword

nonn

Author

R. H. Hardin, Jun 10 2018

Status

approved