1: (3 7 13)

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

2: (6 18 8)

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

3: (10 20 15)

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

4: (5 9 13)

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