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A305450
Number of nX6 0..1 arrays with every element unequal to 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.
1
5, 165, 77, 475, 2697, 5443, 30344, 132479, 485885, 2234246, 10360930, 46551286, 215173161, 1048177833, 5066538127, 24313912355, 121177423087, 601813215111, 2963069376479, 14909449140925, 74812897752428, 373436610864819
OFFSET
1,1
COMMENTS
Column 6 of A305452.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..1..1. .0..1..1..1..0..1. .0..0..1..0..1..1. .0..1..0..0..0..0
..0..0..1..1..0..1. .0..0..0..1..1..0. .1..1..1..1..1..0. .0..0..1..0..1..1
..0..1..1..1..1..1. .0..0..0..1..0..0. .1..1..1..1..1..1. .0..1..1..1..1..1
..0..1..1..1..1..0. .1..0..1..1..0..1. .0..1..0..1..1..0. .0..1..1..1..1..0
..1..1..1..0..1..1. .1..0..1..1..0..1. .1..1..1..1..1..1. .1..1..1..0..1..1
CROSSREFS
Cf. A305452.
Sequence in context: A364117 A247468 A304056 * A304702 A316453 A305013
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 01 2018
STATUS
approved