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A305910 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 1
64, 752, 3534, 40412, 505624, 4408093, 42789430, 473649265, 4825821471, 48835572429, 515686964327, 5401212916943, 56155450958998, 589682890512978, 6202400369157255, 65116511416512053, 685031719571107911 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A305911.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=5

..0..0..0..1..0..0..1. .0..0..1..0..1..1..0. .0..0..0..0..0..1..1

..0..0..1..0..0..1..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0

..0..0..0..0..0..0..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0

..0..0..0..0..0..0..1. .1..0..0..1..1..0..1. .1..0..0..1..1..0..0

..0..0..0..1..1..0..0. .1..0..0..0..0..0..0. .0..0..0..0..0..0..0

CROSSREFS

Cf. A305911.

Sequence in context: A316217 A305641 A317035 * A317152 A316882 A317610

Adjacent sequences:  A305907 A305908 A305909 * A305911 A305912 A305913

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 14 2018

STATUS

approved

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Last modified July 24 18:34 EDT 2021. Contains 346273 sequences. (Running on oeis4.)