1: (2 7 16)

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

2: (5 17 15)

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

3: (4 19 16)

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

4: (1 18 3)

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