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A304892
Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
1
1, 272, 291, 4262, 17391, 123297, 793698, 5028590, 34392736, 221789997, 1497953765, 9866999355, 65897227621, 437859946970, 2915079779300, 19405102950022, 129161733879823, 859965941267175, 5724809453205005
OFFSET
1,2
COMMENTS
Column 6 of A304894.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..0..1. .0..1..1..1..0..1. .0..1..0..1..0..1. .0..0..1..1..0..1
..1..0..0..0..1..0. .1..0..1..0..0..1. .1..0..0..1..0..1. .0..0..1..1..0..1
..0..0..0..1..1..1. .1..1..1..0..0..0. .1..1..0..0..0..0. .0..0..1..1..1..1
..1..1..0..1..1..0. .1..0..1..1..0..1. .0..1..1..0..1..0. .0..0..1..1..0..1
..0..0..0..1..1..0. .0..1..1..0..1..0. .0..1..1..0..0..1. .0..0..1..1..0..1
CROSSREFS
Cf. A304894.
Sequence in context: A305279 A005933 A112820 * A316574 A062906 A253361
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 20 2018
STATUS
approved