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A305641 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero. 1
64, 752, 2197, 27110, 282463, 3252937, 42274045, 591351392, 8584480725, 124078351387, 1818792685910, 27004462368229, 398796896918570, 5911358831555626, 87903132040052308, 1303849881016486552 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A305642.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0..0..0. .0..0..0..0..1..1..0. .0..0..1..1..0..1..0
..0..0..0..1..0..1..1. .0..0..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..1..1..1..0..0
..1..0..1..0..0..1..1. .1..0..0..0..0..0..1. .0..1..0..0..1..0..0
..0..0..0..0..0..1..1. .1..0..0..0..0..0..1. .0..0..1..0..0..0..0
CROSSREFS
Cf. A305642.
Sequence in context: A055867 A304346 A316217 * A317035 A305910 A317152
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 07 2018
STATUS
approved

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)