1: (2 6 11)

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

2: (5 18 7)

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

3: (2 6 11)

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

4: (1 8 4)

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