20946853

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 11101-10111 pattern in any orientation.at n=10A147489
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 11101-10111 pattern in any orientation.at n=22A147491
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 11101-10111 pattern in any orientation.at n=23A147491