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A305952 Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 1
1, 272, 2800, 76951, 1969026, 52618569, 1406191296, 37746118432, 1013991166787, 27256970473749, 732839142493897, 19705593065291569, 529895557393242397, 14249531178588711106, 383190868822260763957, 10304612759199778770913 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A305954.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A305954.

Sequence in context: A304417 A316242 A230908 * A317213 A178268 A205345

Adjacent sequences: A305949 A305950 A305951 * A305953 A305954 A305955

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 15 2018

STATUS

approved

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Last modified January 29 06:03 EST 2023. Contains 359915 sequences. (Running on oeis4.)