A147019 - OEIS

A147019

Number of n X n binary arrays with all ones connected only in a 01000-11111-01000 pattern in any orientation.

1, 1, 1, 1, 13, 57, 277, 2427, 27961, 440433, 11044775, 365499077, 16910160525, 1114224590577

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

OFFSET

1,5

LINKS

EXAMPLE

Maximal 8 X 8 example

.0.1.0.0.1.0.0.0

.0.1.0.1.1.1.1.1

.0.1.0.0.1.0.0.0

.1.1.1.0.0.0.1.0

.0.1.0.0.0.1.1.1

.0.0.0.1.0.0.1.0

.1.1.1.1.1.0.1.0

.0.0.0.1.0.0.1.0

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

STATUS

approved