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A296945 Number of nXn 0..1 arrays with each 1 adjacent to 1, 3 or 5 king-move neighboring 1s. 0
1, 8, 45, 620, 37179, 2640993, 482228052, 246430289779, 233010334725043, 513658708035556281 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A296952.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A296952.

Sequence in context: A002686 A306047 A110348 * A213132 A137390 A190048

Adjacent sequences:  A296942 A296943 A296944 * A296946 A296947 A296948

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 22 2017

STATUS

approved

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Last modified January 17 19:58 EST 2019. Contains 319251 sequences. (Running on oeis4.)