25239520503
domain: N
Appears in sequences
- Number of nX1 0..n*1-1 arrays with upper left zero and lower right n*1-1 and each element differing from its horizontal and vertical neighbors by a power of two.at n=15A265173
- 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 antidiagonal neighbors by a power of two.at n=7A265585