2119711

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 1010-1111-1000 pattern in any orientation.at n=8A146642
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1010-1111-1000 pattern in any orientation.at n=18A146644
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1010-1111-1000 pattern in any orientation.at n=19A146644