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A295373 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1's. 0
2, 8, 74, 1634, 85310, 10437240, 2995361770, 2013609204094, 3172028798241544, 11706071393300493820, 101212810609370065235246, 2050164710762566420019514822 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A295379.

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A295379.

Sequence in context: A012998 A143760 A064605 * A132039 A204552 A002668

Adjacent sequences:  A295370 A295371 A295372 * A295374 A295375 A295376

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 21 2017

STATUS

approved

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Last modified January 24 07:13 EST 2022. Contains 350534 sequences. (Running on oeis4.)