1: (0 3 8)

(0 5 3 15 10 7 1)(2 20 4)(6 18 16 12 9)(8)(11 14 13)(17 21 19)

2: (2 20 4)

(0 5 3 15 10 7 1)(2)(4)(6 18 16 12 9)(8)(11 14 13)(17 21 19)(20)

3: (3 15 5)

(0 5 10 7 1)(2)(3)(4)(6 18 16 12 9)(8)(11 14 13)(15)(17 21 19)(20)

4: (6 18 9)

(0 5 10 7 1)(2)(3)(4)(6)(8)(9 16 12)(11 14 13)(15)(17 21 19)(18)(20)