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A305515 Number of nX7 0..1 arrays with every element unequal to 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1
8, 22, 33, 73, 353, 925, 3547, 14118, 43745, 173690, 619516, 2147913, 8153824, 28790735, 103815980, 382085808, 1363770884, 4956454784, 18012376227, 64822077441, 235449812312, 852438681934, 3079887721936, 11169200595881 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A305516.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A305516.

Sequence in context: A064193 A301482 A213017 * A063301 A030999 A113744

Adjacent sequences:  A305512 A305513 A305514 * A305516 A305517 A305518

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 03 2018

STATUS

approved

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Last modified November 17 16:08 EST 2019. Contains 329241 sequences. (Running on oeis4.)