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A296732 Number of n X n 0..1 arrays with each 1 adjacent to 1, 2 or 4 king-move neighboring 1's. 0
1, 11, 126, 4251, 458494, 114153198, 76925689840, 140147361921752, 663354662878523133, 8315652944981928201257 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A296739.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A296739.

Sequence in context: A209901 A285056 A015597 * A156970 A174270 A335954

Adjacent sequences:  A296729 A296730 A296731 * A296733 A296734 A296735

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 19 2017

STATUS

approved

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Last modified August 12 23:19 EDT 2020. Contains 336440 sequences. (Running on oeis4.)