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A295978 Number of nXn 0..1 arrays with each 1 adjacent to 2 or 3 king-move neighboring 1s. 0
1, 6, 44, 518, 62702, 10239175, 3710803701, 5908904429141, 19661826179139454, 159706594064013413371, 4070881939232241860985279 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A295985.

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A295985.

Sequence in context: A226045 A001852 A284218 * A194928 A267074 A271963

Adjacent sequences:  A295975 A295976 A295977 * A295979 A295980 A295981

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 01 2017

STATUS

approved

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Last modified March 21 10:13 EDT 2019. Contains 321368 sequences. (Running on oeis4.)