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A297588 Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 4 neighboring 1s. 1
1, 178, 3854, 17549, 171543, 3230902, 38609160, 348140132, 4059598106, 52019909493, 586271189408, 6378535786438, 74263762213809, 871302311717772, 9894632611196172, 112311237616769754, 1295286294924141697 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 7 of A297582.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

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

CROSSREFS

Cf. A297582.

Sequence in context: A297400 A297600 A296824 * A189440 A163730 A157842

Adjacent sequences:  A297585 A297586 A297587 * A297589 A297590 A297591

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2018

STATUS

approved

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Last modified January 15 12:14 EST 2021. Contains 340187 sequences. (Running on oeis4.)