login
A304701
Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
1
3, 51, 46, 215, 908, 5232, 19701, 135455, 872954, 4460213, 28861276, 182319313, 1043954782, 6559780616, 40608072614, 242771829978, 1502847915709, 9234685790042, 56064025371157, 344833181614977, 2113754951173744
OFFSET
1,1
COMMENTS
Column 5 of A304704.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..1. .0..1..0..1..1. .0..1..1..1..0. .0..1..1..0..1
..1..1..0..0..0. .0..0..0..0..0. .0..1..1..0..1. .0..1..1..1..0
..1..1..1..1..1. .0..0..1..1..1. .0..0..0..0..0. .0..0..0..0..0
..0..0..0..1..1. .0..1..0..0..0. .0..1..1..1..0. .1..0..1..1..0
..1..1..0..0..0. .1..0..0..1..1. .1..0..1..0..1. .0..1..1..0..1
CROSSREFS
Cf. A304704.
Sequence in context: A144987 A304055 A305449 * A316452 A227069 A062216
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 17 2018
STATUS
approved