1: (2 6 15)

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

2: (5 18 7)

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

3: (2 6 15)

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

4: (1 8 4)

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