1: (7 10 13)

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

2: (5 10 8)

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

3: (9 17 11)

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

4: (2 15 12)

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