1: (3 7 11)

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

2: (5 14 8)

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

3: (3 18 6)

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

4: (10 16 13)

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