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A305455 Number of nX6 0..1 arrays with every element unequal to 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 1
0, 209, 1891, 48148, 1117343, 25891309, 612656116, 14339915102, 337239061289, 7920819385086, 186084400183300, 4371833121122134, 102706718977110820, 2412930568949026303, 56687408908124252893, 1331772655188493216188 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A305457.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A305457.

Sequence in context: A104874 A157441 A304063 * A305020 A316684 A235731

Adjacent sequences:  A305452 A305453 A305454 * A305456 A305457 A305458

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 01 2018

STATUS

approved

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Last modified June 30 09:38 EDT 2022. Contains 354920 sequences. (Running on oeis4.)