1: (1 4 8)

(0 9 2)(1 5 4 20 18)(3 14 6)(7 12 11)(8)(10 16 13)(15 19 17)

2: (3 14 6)

(0 9 2)(1 5 4 20 18)(3)(6)(7 12 11)(8)(10 16 13)(14)(15 19 17)

3: (0 9 2)

(0)(1 5 4 20 18)(2)(3)(6)(7 12 11)(8)(9)(10 16 13)(14)(15 19 17)

4: (1 5 18)

(0)(1)(2)(3)(4 20 18)(5)(6)(7 12 11)(8)(9)(10 16 13)(14)(15 19 17)