2918403939

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 1101-0111 pattern in any orientation.at n=9A146722
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1101-0111 pattern in any orientation.at n=20A146724
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1101-0111 pattern in any orientation.at n=21A146724