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A317456
Number of nX6 0..1 arrays with every element unequal to 1, 2, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1
5, 165, 322, 1525, 21250, 165890, 1201543, 12609827, 130759485, 1165547325, 11861528132, 122671090575, 1179210043855, 11913085928857, 121079296593807, 1195464237944895, 12031381095915147, 121284411043719032
OFFSET
1,1
COMMENTS
Column 6 of A317458.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..1..0. .0..1..0..0..1..0. .0..0..0..0..0..1. .0..1..0..1..1..1
..1..0..0..0..0..0. .1..0..0..0..0..1. .0..1..1..0..0..1. .0..0..1..1..0..1
..0..0..0..0..0..0. .1..1..1..1..1..1. .0..0..1..1..1..1. .0..1..1..1..1..1
..1..0..0..1..0..1. .1..0..0..1..1..1. .0..1..1..1..1..1. .1..0..1..1..1..1
..1..0..0..1..0..1. .0..1..0..0..0..1. .0..1..1..0..0..1. .1..1..1..1..0..1
CROSSREFS
Cf. A317458.
Sequence in context: A305013 A316646 A316174 * A203185 A129995 A259613
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 28 2018
STATUS
approved