1: (4 8 15)

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

2: (1 14 6)

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

3: (7 20 9)

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

4: (3 15 12)

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