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A316121 Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1
1, 49, 144, 702, 5426, 43480, 283238, 2064800, 15977233, 116608607, 858256097, 6440073113, 47877563340, 355152715761, 2646475707180, 19706024586437, 146557771466279, 1090878142968706, 8120995743454821, 60436020674609822 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A316123.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316123.

Sequence in context: A118160 A211501 A009404 * A087354 A098442 A088535

Adjacent sequences:  A316118 A316119 A316120 * A316122 A316123 A316124

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 24 2018

STATUS

approved

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Last modified September 22 05:47 EDT 2019. Contains 327287 sequences. (Running on oeis4.)