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A300174
Number of nX7 0..1 arrays with every element equal to 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1
0, 104, 4712, 223445, 16262433, 1068913988, 73267622156, 5003777484149, 342457741960757, 23463084389592468, 1607692436522081299, 110183824161597193152, 7551825160644408582307, 517606569952457413522169
OFFSET
1,2
COMMENTS
Column 7 of A300175.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0..0..0. .0..0..1..1..1..1..1. .0..0..0..0..1..1..1
..0..0..0..1..0..0..0. .0..0..1..1..0..1..0. .0..0..0..1..0..1..1
..0..0..1..1..1..1..0. .0..0..1..0..1..0..0. .0..0..0..1..1..0..0
..0..0..0..1..0..1..0. .0..0..0..0..1..0..0. .0..0..0..0..1..1..0
..0..0..0..0..1..0..0. .0..0..0..0..1..1..0. .0..0..0..0..1..1..1
CROSSREFS
Cf. A300175.
Sequence in context: A185741 A299333 A007267 * A250668 A035811 A004393
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 27 2018
STATUS
approved