Number of nX4 0..n*4-1 arrays with upper left zero and lower right n*4-1 and each element differing from its horizontal and vertical neighbors by a power of two.
A265176
Number of nX4 0..n*4-1 arrays with upper left zero and lower right n*4-1 and each element differing from its horizontal and vertical neighbors by a power of two.
Terms
- a(0) =2a(1) =139a(2) =170970a(3) =36765048a(4) =19256175024
External references
- oeis: A265176