31824755

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 1110-1111 pattern in any orientation.at n=8A146738
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1110-1111 pattern in any orientation.at n=18A146740
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1110-1111 pattern in any orientation.at n=19A146740