1: (3 6 16)

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

2: (1 8 4)

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

3: (3 6 16)

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

4: (5 10 7)

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