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A316647
Number of nX7 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1
8, 306, 599, 2432, 54941, 228056, 1396674, 17049299, 106043303, 774609628, 7324990570, 55119909036, 436298131908, 3797205688357, 30881995446060, 254258778361845, 2167620254285320, 18164281808012240, 152495270043730786
OFFSET
1,1
COMMENTS
Column 7 of A316648.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0..0..1. .0..1..0..0..1..1..1. .0..1..1..0..1..0..1
..1..0..0..1..0..0..1. .1..0..0..0..1..1..0. .1..0..1..1..1..1..0
..0..0..0..0..0..0..0. .1..1..1..1..1..1..1. .1..1..1..1..1..1..1
..1..0..0..1..0..0..1. .0..1..0..0..1..1..1. .1..1..1..0..1..0..1
..1..0..0..0..1..0..0. .0..1..0..0..0..0..1. .1..0..1..1..1..1..0
CROSSREFS
Cf. A316648.
Sequence in context: A304703 A316454 A305014 * A316175 A317457 A352591
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 09 2018
STATUS
approved