1: (7 13 16)

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

2: (10 17 15)

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

3: (7 13 16)

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

4: (6 12 9)

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