login
A302319
Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
16, 136, 519, 3559, 20686, 110035, 659949, 3834162, 21619209, 125759301, 728487588, 4178486509, 24137288153, 139551131994, 804265070921, 4640730688697, 26804969538102, 154673453289555, 892538049899287
OFFSET
1,1
COMMENTS
Column 5 of A302322.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..0. .0..1..1..1..1. .0..0..0..1..1. .0..0..1..1..1
..0..0..1..0..0. .0..0..1..0..1. .0..1..0..0..0. .0..0..1..0..1
..1..0..1..1..1. .0..0..0..0..0. .0..1..1..1..0. .0..1..0..0..1
..1..1..0..0..1. .0..1..1..1..1. .0..0..0..1..0. .1..1..0..0..1
..1..1..0..1..1. .0..1..1..1..1. .1..1..0..1..1. .0..0..1..0..1
CROSSREFS
Cf. A302322.
Sequence in context: A139616 A304506 A187175 * A303013 A059421 A231766
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 05 2018
STATUS
approved