A296967 - OEIS

A296967

Number of n X n 0..1 arrays with each 1 adjacent to 2, 4 or 5 king-move neighboring 1's.

1, 5, 31, 274, 13543, 1154298, 222799447, 143300513381, 227497889396792

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Diagonal of A296974.

LINKS

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 22 2017

STATUS

approved