1: (2 6 12)

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

2: (12 14 15)

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

3: (1 8 3)

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

4: (5 10 7)

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