1: (3 6 15)

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

2: (6 9 12)

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

3: (8 14 10)

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

4: (3 12 7)

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