1: (1 5 11)

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

2: (7 11 16)

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

3: (6 14 9)

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

4: (11 18 15)

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