6260685646

Appears in sequences

• Number of nX2 0..n*2-1 arrays with upper left zero and lower right n*2-1 and each element differing from its horizontal and vertical neighbors by a power of two.at n=8A265174
• Number of nX2 0..n*2-1 arrays with upper left zero and lower right n*2-1 and each element differing from its horizontal, diagonal and antidiagonal neighbors by a power of two.at n=8A265631