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A305909 Number of nX6 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
32, 284, 1124, 9140, 86944, 595490, 4408093, 36427606, 282035936, 2165124168, 17168241344, 135113020399, 1056973674222, 8327489019075, 65625783545765, 516335601781906, 4067981204530131, 32064360560681481, 252667585232353830 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A305911.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A305911.

Sequence in context: A316216 A305640 A317034 * A317151 A316881 A317609

Adjacent sequences:  A305906 A305907 A305908 * A305910 A305911 A305912

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 14 2018

STATUS

approved

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Last modified October 25 20:31 EDT 2021. Contains 348256 sequences. (Running on oeis4.)