Number of (2n-1)X2 0..4n-3 arrays with upper left zero and lower right 4n-3 and each element differing from its horizontal and vertical neighbors by a power of three.
A265213
Number of (2n-1)X2 0..4n-3 arrays with upper left zero and lower right 4n-3 and each element differing from its horizontal and vertical neighbors by a power of three.
Terms
- a(0) =1a(1) =16a(2) =1958a(3) =654833a(4) =112227310a(5) =32488774453
External references
- oeis: A265213