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A317159
Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1
21, 289, 394, 5458, 65283, 887617, 20168266, 403588059, 7455221517, 157652314841, 3278034102350, 65599384303310, 1352543915841254, 27963512709938535, 571322773525176426, 11733856161593435547, 241590042914729211337
OFFSET
1,1
COMMENTS
Column 7 of A317160.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0..1..1. .0..0..0..1..1..1..1. .0..1..1..0..1..0..0
..1..1..0..1..0..1..0. .1..0..0..0..1..1..1. .0..0..0..0..1..0..1
..1..1..0..0..1..1..1. .1..1..0..1..1..1..0. .1..1..0..1..0..1..1
..1..0..1..0..0..1..1. .0..0..1..0..0..0..1. .1..0..1..0..1..0..0
..0..0..1..1..0..1..0. .0..1..0..1..0..0..0. .0..0..1..0..1..0..1
CROSSREFS
Cf. A317160.
Sequence in context: A304354 A305917 A316238 * A305648 A316924 A317042
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 22 2018
STATUS
approved