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A304596
Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
1
8, 4184, 54357, 1593375, 39628005, 957716506, 23762003978, 591616446858, 14572206851838, 360994251476480, 8936711526783355, 221039913402879007, 5470384324765026549, 135373164068450889148, 3349671504499320289459
OFFSET
1,1
COMMENTS
Column 7 of A304597.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..0..1..0. .0..0..0..0..0..0..0. .0..1..0..0..0..1..0
..0..1..0..0..0..1..1. .0..1..1..1..0..1..1. .0..0..1..0..0..1..0
..0..0..1..0..0..1..1. .0..0..1..1..1..0..0. .0..0..1..0..0..0..1
..0..1..0..0..0..0..1. .0..1..0..1..0..0..0. .0..1..1..1..0..0..0
..0..0..1..1..1..1..1. .0..0..1..1..0..0..1. .0..0..0..1..1..0..1
CROSSREFS
Cf. A304597.
Sequence in context: A305287 A304900 A316582 * A316382 A306142 A317375
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 15 2018
STATUS
approved