1: (0 8 11)

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

2: (6 14 9)

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

3: (5 16 7)

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

4: (12 17 15)

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