Number of nX3 0..n*3-1 arrays with upper left zero and lower right n*3-1 and each element differing from its horizontal and diagonal neighbors by a power of two.

A265616

Number of nX3 0..n*3-1 arrays with upper left zero and lower right n*3-1 and each element differing from its horizontal and diagonal neighbors by a power of two.

Terms

    a(0) =1a(1) =64a(2) =5625a(3) =545952a(4) =147336019a(5) =54825790582

External references