1: (0 6 7)

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

2: (7 14 20)

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

3: (13 21 15)

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

4: (6 20 12)

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