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A304549 Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero. 1
1, 272, 749, 12281, 127607, 1368963, 16063367, 183955750, 2091952988, 24171750958, 277553198072, 3190136513649, 36716678813326, 422284655045291, 4857766186249146, 55888831842122530, 642944889250837908 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A304551.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304551.

Sequence in context: A133514 A235293 A270302 * A316374 A306134 A317269

Adjacent sequences:  A304546 A304547 A304548 * A304550 A304551 A304552

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 14 2018

STATUS

approved

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Last modified May 16 05:56 EDT 2022. Contains 353693 sequences. (Running on oeis4.)