1: (6 10 12)

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

2: (10 15 17)

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

3: (5 11 8)

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

4: (2 16 14)

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