1: (9 12 20)

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

2: (2 4 12)

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

3: (8 13 11)

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

4: (1 15 3)

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