The number of ways of tiling the n X n grid up to diagonal and antidiagonal reflections by a tile that is fixed under 180-degree rotations but is not fixed under either reflection.
A367528
The number of ways of tiling the n X n grid up to diagonal and antidiagonal reflections by a tile that is fixed under 180-degree rotations but is not fixed under either reflection.
Terms
- a(0) =1a(1) =5a(2) =136a(3) =16448a(4) =8390656a(5) =17179934720
External references
- oeis: A367528