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A297796 Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1's. 0
1, 2, 37, 422, 23781, 5511367, 3420197908, 4611250894511, 18829563773811206 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A297802.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A297802.

Sequence in context: A243101 A001569 A092853 * A300542 A100849 A300969

Adjacent sequences:  A297793 A297794 A297795 * A297797 A297798 A297799

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 06 2018

STATUS

approved

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Last modified October 19 11:47 EDT 2021. Contains 348088 sequences. (Running on oeis4.)