271641

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 1000-1000-1111-0100 pattern in any orientation.at n=8A147115
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1000-1000-1111-0100 pattern in any orientation.at n=18A147117
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1000-1000-1111-0100 pattern in any orientation.at n=19A147117