login
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.
1
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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 08 2018
STATUS
approved