1: (4 9 18)

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

2: (3 15 5)

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

3: (14 19 17)

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

4: (2 6 4)

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