A317523 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

32, 2048, 115446, 6475106, 364882328, 20564214798, 1158965686460, 65318143510572, 3681268128789010, 207472769534191084, 11692968278637232258, 659004591348743396480, 37140873154579069191626, 2093224352223179964338280

Offset

1,1

Comments

Column 6 of A317525.

Links

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

R. H. Hardin, Empirical recurrence of order 59

Formula

Empirical recurrence of order 59 (see link above)

Example

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

Crossrefs

Cf. A317525.

Sequence in context: A301782 A316806 A213416 * A299652 A300206 A303419

Adjacent sequences: A317520 A317521 A317522 * A317524 A317525 A317526

Keyword

nonn

Author

R. H. Hardin, Jul 30 2018

Status

approved