A147139 - OEIS

A147139

Number of n X n binary arrays with all ones connected only in a 1000-1100-0110-0011 pattern in any orientation.

1, 1, 1, 5, 19, 89, 531, 4899, 96559, 2300395, 69316227, 2985544439, 203665387955

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

OFFSET

1,4

LINKS

EXAMPLE

Maximal 8 X 8 example

.0.0.1.1.0.0.0.0

.0.1.1.0.1.1.0.0

.1.1.0.0.0.1.1.0

.1.0.0.0.0.0.1.1

.0.1.0.0.1.0.0.1

.0.1.1.0.1.1.0.0

.0.0.1.1.0.1.1.0

.0.0.0.1.1.0.1.1

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

STATUS

approved