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A304892 Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero. 1
1, 272, 291, 4262, 17391, 123297, 793698, 5028590, 34392736, 221789997, 1497953765, 9866999355, 65897227621, 437859946970, 2915079779300, 19405102950022, 129161733879823, 859965941267175, 5724809453205005 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A304894.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304894.

Sequence in context: A305279 A005933 A112820 * A316574 A062906 A253361

Adjacent sequences:  A304889 A304890 A304891 * A304893 A304894 A304895

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 20 2018

STATUS

approved

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Last modified July 23 12:19 EDT 2021. Contains 346259 sequences. (Running on oeis4.)