606546

Appears in sequences

• Half the number of nX4 binary arrays with each element equal to at least one neighbor.at n=5A180764
• Half the number of nX6 binary arrays with each element equal to at least one neighbor.at n=3A180766
• T(n,k) = half the number of n X k binary arrays with each element equal to at least one neighbor.at n=39A180771
• T(n,k) = half the number of n X k binary arrays with each element equal to at least one neighbor.at n=41A180771