1: (2 7 15)

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

2: (1 7 3)

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

3: (6 16 14)

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

4: (0 15 3)

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