1: (0 6 7)

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

2: (7 12 20)

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

3: (8 21 15)

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

4: (9 16 14)

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