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A306170
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
1
13, 105, 123, 544, 1956, 5277, 16195, 52752, 158458, 503426, 1626380, 5018948, 15811628, 50435662, 157657009, 496317068, 1574666421, 4950381192, 15591794060, 49320992460, 155399103321, 489755624503, 1547029672517, 4878616148585
OFFSET
1,1
COMMENTS
Column 6 of A306172.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..1..0. .0..1..1..1..1..0. .0..1..0..1..1..0. .0..0..0..1..0..0
..0..0..0..0..0..0. .1..1..1..1..1..1. .0..0..0..1..0..0. .1..0..0..0..0..0
..0..0..0..0..0..0. .0..0..1..1..1..1. .0..0..0..0..0..0. .0..0..0..0..0..0
..0..0..0..0..0..1. .0..1..1..1..1..1. .0..0..0..0..0..0. .0..0..0..0..0..0
..1..0..0..0..0..0. .1..1..1..1..0..1. .0..0..0..0..0..0. .0..1..0..0..0..0
CROSSREFS
Cf. A306172.
Sequence in context: A304929 A041316 A304667 * A305345 A316613 A316425
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 23 2018
STATUS
approved