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A296797 Number of n X n 0..1 arrays with each 1 adjacent to 1, 3 or 4 king-move neighboring 1's. 0
1, 8, 47, 1011, 77705, 11910888, 5712715858, 7684218661876, 26989156683330346, 262467117400311786434 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A296804.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A296804.

Sequence in context: A098891 A054488 A034349 * A024108 A247726 A263506

Adjacent sequences:  A296794 A296795 A296796 * A296798 A296799 A296800

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2017

STATUS

approved

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Last modified September 25 22:13 EDT 2020. Contains 337346 sequences. (Running on oeis4.)