206993090

Appears in sequences

• T(n,k) is the number of n X k 0..n*k-1 arrays with upper left zero and lower right n*k-1 and each element differing from its horizontal, diagonal and antidiagonal neighbors by a power of two.at n=30A265635
• Number of 3Xn 0..3*n-1 arrays with upper left zero and lower right 3*n-1 and each element differing from its horizontal, diagonal and antidiagonal neighbors by a power of two.at n=5A265637