1: (7 17 20)

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

2: (5 18 16)

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

3: (7 17 20)

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

4: (4 9 6)

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