1: (5 11 15)

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

2: (4 13 6)

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

3: (9 14 12)

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

4: (15 18 20)

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