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A316426 Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1
21, 237, 311, 1660, 8761, 31433, 130402, 585212, 2366785, 9815061, 42205654, 175355823, 730455300, 3093042582, 12946456110, 54109637656, 227779656571, 955289842419, 4000305391990, 16801782691536, 70493554918254 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A316427.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316427.

Sequence in context: A316614 A304668 A306171 * A317428 A089937 A175843

Adjacent sequences:  A316423 A316424 A316425 * A316427 A316428 A316429

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 02 2018

STATUS

approved

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Last modified January 19 22:12 EST 2022. Contains 350466 sequences. (Running on oeis4.)