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A297589 Number of nXn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 5 neighboring 1s. 0
1, 5, 25, 154, 3747, 163704, 9403199, 1120526916, 303459238317, 138838185786076, 112146192906098209, 184312505263036081408, 579679725644521049265576, 3298268036530237426659387766 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A297595.

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Cf. A297595.

Sequence in context: A106565 A200031 A216689 * A092166 A204209 A121112

Adjacent sequences:  A297586 A297587 A297588 * A297590 A297591 A297592

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2018

STATUS

approved

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Last modified January 23 01:15 EST 2020. Contains 331166 sequences. (Running on oeis4.)