A259886 - OEIS

A259886

Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000011

34, 174, 3511, 58800, 863502, 36899517, 2374588015, 164942896153, 19599999649066, 4057158204209362, 1127811895283780994, 456911158873144313537, 303382458821148235424263

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

OFFSET

1,1

COMMENTS

Diagonal of A259894

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..15

EXAMPLE

Some solutions for n=4

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

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

..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0

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

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

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

CROSSREFS

Cf. A259894

Sequence in context: A191593 A259944 A063652 * A365222 A032771 A269237

Adjacent sequences: A259883 A259884 A259885 * A259887 A259888 A259889

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 07 2015

STATUS

approved