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A317427 Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1
13, 105, 148, 640, 2891, 9116, 32359, 125832, 439409, 1569243, 5838001, 20921309, 75145761, 275012020, 993320053, 3581537950, 13021568490, 47138154809, 170339377429, 617708630989, 2237181582408, 8093518693967, 29321389145176 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A317429.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A317429.

Sequence in context: A305345 A316613 A316425 * A320204 A080422 A030055

Adjacent sequences:  A317424 A317425 A317426 * A317428 A317429 A317430

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 27 2018

STATUS

approved

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Last modified January 28 04:30 EST 2022. Contains 350654 sequences. (Running on oeis4.)