1: (3 7 13)

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

2: (6 16 8)

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

3: (12 18 15)

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

4: (4 8 13)

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