A316581 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

5, 1145, 5936, 98828, 1216428, 15492767, 209344758, 2702476568, 35886237100, 470296149750, 6190387293318, 81442978266835, 1070806152120760, 14088486439428683, 185281944875077216, 2437189858513630771

Offset

1,1

Comments

Column 6 of A316583.

Links

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

Example

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

Crossrefs

Cf. A316583.

Sequence in context: A303894 A305286 A304899 * A304595 A316381 A306141

Adjacent sequences: A316578 A316579 A316580 * A316582 A316583 A316584

Keyword

nonn

Author

R. H. Hardin, Jul 07 2018

Status

approved