A317375 - OEIS

A317375

Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

8, 4184, 83982, 3113246, 134524463, 4822465183, 185409601420, 7139196864817, 270802813530242, 10353229306821779, 395315761539270049, 15081544956388244304, 575771362791386785384, 21976775345261329189777

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OFFSET

1,1

COMMENTS

Column 7 of A317376.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A317376.

Sequence in context: A304596 A316382 A306142 * A100351 A045478 A055319

Adjacent sequences: A317372 A317373 A317374 * A317376 A317377 A317378

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 26 2018

STATUS

approved