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A296108 Number of n X n 0..1 arrays with each 1 adjacent to 3 or 4 king-move neighboring 1's. 0
1, 2, 6, 16, 503, 29003, 1993970, 1061506422, 1365762093736, 2515747231264231 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A296115.
LINKS
EXAMPLE
Some solutions for n=6
..1..1..0..0..0..0. .0..1..1..1..1..0. .0..1..0..1..1..0. .0..1..1..1..1..1
..1..1..0..0..1..1. .1..1..0..1..1..0. .1..1..1..0..1..1. .1..1..0..0..1..1
..1..0..0..0..1..1. .0..1..0..0..0..0. .0..1..0..0..1..0. .1..0..0..0..0..0
..0..1..0..0..0..0. .0..1..0..0..0..0. .1..0..0..0..1..0. .0..1..0..0..0..0
..0..1..1..0..0..0. .1..1..1..0..1..1. .1..1..1..1..1..0. .1..1..0..1..1..0
..0..1..1..0..0..0. .0..1..0..0..1..1. .0..1..0..1..0..0. .1..1..0..1..1..0
CROSSREFS
Cf. A296115.
Sequence in context: A325790 A144690 A317351 * A118305 A139629 A057497
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 04 2017
STATUS
approved

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Last modified March 29 10:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)