1: (1 6 15)

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

2: (0 8 2)

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

3: (1 6 15)

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

4: (4 11 7)

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