A316613 Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

13, 105, 126, 454, 1749, 5464, 17224, 58861, 190509, 613009, 2033562, 6661058, 21647463, 71089634, 233091249, 761023933, 2492107497, 8165184140, 26706741560, 87408400302, 286222682245, 936714517961, 3065727727972, 10036183213622

Offset

1,1

Comments

Column 6 of A316615.

Links

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

Example

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

Crossrefs

Cf. A316615.

Sequence in context: A304667 A306170 A305345 * A316425 A317427 A320204

Adjacent sequences: A316610 A316611 A316612 * A316614 A316615 A316616

Keyword

nonn

Author

R. H. Hardin, Jul 08 2018

Status

approved