422837

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 1000-1110-0111-0001 pattern in any orientation.at n=9A147397
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1000-1110-0111-0001 pattern in any orientation.at n=20A147399
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1000-1110-0111-0001 pattern in any orientation.at n=21A147399