login
A316309
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
1
13, 61, 83, 404, 1488, 4431, 17487, 75221, 293206, 1262596, 5656690, 25122303, 114261106, 529250742, 2459225011, 11507032895, 54202472427, 256046793093, 1212774884768, 5758714680206, 27386651158332, 130399164042147
OFFSET
1,1
COMMENTS
Column 6 of A316311.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0..0. .0..1..1..1..0..0. .0..0..1..1..1..1. .0..1..1..1..1..1
..1..1..0..1..0..0. .0..0..1..1..1..0. .0..1..1..1..1..1. .1..1..1..1..1..1
..0..0..0..0..0..0. .0..0..0..0..0..0. .1..1..1..1..1..1. .1..1..1..1..1..1
..0..1..0..0..0..0. .0..0..0..1..0..0. .1..1..1..1..1..0. .0..1..1..1..0..1
..0..0..0..0..0..1. .1..0..0..0..0..0. .0..1..1..1..0..0. .0..0..1..1..1..1
CROSSREFS
Cf. A316311.
Sequence in context: A002647 A306127 A118711 * A317264 A028874 A087106
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 29 2018
STATUS
approved