1: (0 6 11)

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

2: (5 12 9)

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

3: (11 16 18)

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

4: (14 19 17)

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