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A304694
Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
1
3, 120, 669, 4910, 37050, 263381, 1894297, 13791026, 99838011, 723141636, 5242242192, 38000913259, 275443591763, 1996621786317, 14473789984416, 104921152690890, 760577267171391, 5513516936878546, 39968166811319574
OFFSET
1,1
COMMENTS
Column 5 of A304697.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0. .0..1..0..1..1. .0..1..1..0..1. .0..0..0..0..0
..1..0..0..0..0. .1..1..1..1..0. .1..1..0..1..0. .0..1..1..1..0
..0..0..1..1..0. .0..1..1..1..1. .1..1..0..0..0. .0..1..0..0..1
..0..1..0..1..0. .1..1..0..1..1. .0..0..0..0..1. .0..0..1..0..1
..1..1..0..0..1. .0..0..0..1..0. .1..0..0..1..1. .1..0..0..1..1
CROSSREFS
Cf. A304697.
Sequence in context: A304956 A316638 A227480 * A316445 A316127 A317433
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 17 2018
STATUS
approved