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A295775 Number of n X n 0..1 arrays with each 1 adjacent to 0 or 2 king-move neighboring 1's. 0
2, 9, 56, 1059, 37897, 2602065, 409525082, 128171125105, 83333126432833, 114403160523019326, 323325261181740261922, 1905368274130445991781276 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A295781.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A295781.

Sequence in context: A277482 A274393 A004103 * A223381 A175896 A175900

Adjacent sequences:  A295772 A295773 A295774 * A295776 A295777 A295778

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 27 2017

STATUS

approved

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Last modified October 16 03:52 EDT 2021. Contains 348035 sequences. (Running on oeis4.)