login
A305691
Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
1
8, 5824, 453553, 47448563, 4791219558, 484920924010, 49083436693252, 4968168200482612, 502868587709213674, 50899470674105259942, 5151954783888699806976, 521471776409885375274986
OFFSET
1,1
COMMENTS
Column 7 of A305692.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..0..0..0. .0..0..1..0..0..1..1. .0..0..1..0..0..1..1
..0..1..1..0..0..1..1. .0..1..1..0..0..0..1. .0..1..1..0..0..0..0
..0..0..0..0..1..0..0. .0..0..0..0..0..1..0. .0..0..0..0..1..0..0
..1..0..0..1..1..0..0. .1..0..0..0..1..0..1. .1..0..0..0..1..1..0
..0..0..1..1..1..1..1. .0..0..0..1..0..0..0. .0..0..1..0..0..1..0
CROSSREFS
Cf. A305692.
Sequence in context: A316281 A305960 A317221 * A317071 A316952 A317732
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 08 2018
STATUS
approved