login
A297905
Number of nX6 0..1 arrays with every element equal to 0, 1, 3 or 4 king-move adjacent elements, with upper left element zero.
1
13, 73, 5, 97, 395, 257, 1586, 5761, 18420, 89795, 363173, 1833923, 8496393, 38302295, 196700384, 914662922, 4312830207, 21655368892, 101858718582, 488281692050, 2410686976807, 11446024784253, 55197091923503
OFFSET
1,1
COMMENTS
Column 6 of A297907.
LINKS
EXAMPLE
Some solutions for n=7
..0..0..1..1..0..0. .0..0..1..0..1..1. .0..1..1..0..1..1. .0..0..0..1..1..0
..0..0..1..1..0..0. .0..0..1..0..1..1. .0..1..1..0..1..1. .0..0..1..0..1..1
..1..1..0..0..1..1. .0..1..1..0..0..1. .0..0..1..0..0..0. .1..1..1..0..0..1
..1..1..0..0..1..1. .0..0..1..1..0..1. .0..1..1..0..1..1. .0..0..1..0..1..1
..0..0..1..1..0..0. .1..0..1..0..1..1. .1..0..1..0..1..1. .0..0..1..0..1..1
..1..1..0..0..1..1. .0..0..1..0..0..1. .0..0..1..0..0..0. .0..1..1..0..0..1
..1..1..0..0..1..1. .1..0..0..0..1..0. .1..0..0..0..1..1. .0..1..1..0..0..1
CROSSREFS
Cf. A297907.
Sequence in context: A094943 A189605 A000470 * A298499 A298318 A299391
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 08 2018
STATUS
approved