A147385 - OEIS

A147385

Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 10001-11111-00100 pattern in any orientation.

1, 1, 1, 1, 7, 1, 25, 9, 112, 27, 3654, 849, 113270, 25721, 4179283

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

OFFSET

1,5

LINKS

EXAMPLE

Maximal 8 X 8 example

.0.1.1.0.0.1.1.0

.0.1.0.0.0.0.1.0

.1.1.0.0.0.0.1.1

.0.1.0.0.0.0.1.0

.0.1.1.0.0.1.1.0

.0.0.0.0.0.0.0.0

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved