549125

Appears in sequences

• Half the number of n X 3 binary arrays with each element equal to at least one neighbor.at n=7A180763
• Half the number of n X 8 binary arrays with each element equal to at least one neighbor.at n=2A180768
• T(n,k) = half the number of n X k binary arrays with each element equal to at least one neighbor.at n=47A180771