The number of ways of tiling the n X n grid up to 90-degree rotation by a tile that is not fixed under 180-degree rotation.

A367532

The number of ways of tiling the n X n grid up to 90-degree rotation by a tile that is not fixed under 180-degree rotation.

Terms

    a(0) =1a(1) =70a(2) =65536a(3) =1073758336

External references