13738057

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 1101-1111 pattern in any orientation.at n=8A146863
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1101-1111 pattern in any orientation.at n=18A146865
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1101-1111 pattern in any orientation.at n=19A146865