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A297019 Number of nX7 0..1 arrays with each 1 adjacent to 3, 4 or 6 king-move neighboring 1s. 1
1, 31, 400, 2355, 36508, 732736, 11172600, 193972861, 3611228309, 64457269821, 1160327502568, 21155577779303, 383656455671632, 6955900546813945, 126385734152720432, 2294982721695823548, 41663174884714090303 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A297020.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A297020.

Sequence in context: A179465 A142829 A300869 * A022691 A125443 A268137

Adjacent sequences:  A297016 A297017 A297018 * A297020 A297021 A297022

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 23 2017

STATUS

approved

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Last modified January 25 01:37 EST 2020. Contains 331229 sequences. (Running on oeis4.)