1: (6 9 12)

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

2: (11 12 14)

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

3: (5 13 7)

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

4: (3 10 8)

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