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A304703 Number of nX7 0..1 arrays with every element unequal to 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero. 1
8, 306, 201, 3055, 19701, 296646, 3510334, 37931518, 611105804, 7863857781, 97427633369, 1442412206399, 18997425894763, 248683605318596, 3505342390311524, 46717213252442632, 624509190471187783 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A304704.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304704.

Sequence in context: A222792 A304057 A305451 * A316454 A305014 A316647

Adjacent sequences:  A304700 A304701 A304702 * A304704 A304705 A304706

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 17 2018

STATUS

approved

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Last modified October 16 13:51 EDT 2019. Contains 328093 sequences. (Running on oeis4.)