1: (1 6 15)

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

2: (0 7 5)

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

3: (1 6 15)

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

4: (4 16 14)

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