1: (0 3 7)

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

2: (2 19 4)

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

3: (1 20 17)

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

4: (3 15 5)

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