52186

Appears in sequences

• Half the number of nX4 binary arrays with each element equal to at least one neighbor.at n=4A180764
• Half the number of nX5 binary arrays with each element equal to at least one neighbor.at n=3A180765
• T(n,k) = half the number of n X k binary arrays with each element equal to at least one neighbor.at n=31A180771
• T(n,k) = half the number of n X k binary arrays with each element equal to at least one neighbor.at n=32A180771