Number of 3 X n Latin rectangles whose second row has cycles of even length only.
A174560
Number of 3 X n Latin rectangles whose second row has cycles of even length only.
Terms
- a(0) =0a(1) =24a(2) =0a(3) =18000a(4) =0a(5) =52254720
External references
- oeis: A174560