1: (8 15 18)

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

2: (7 17 9)

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

3: (14 19 16)

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

4: (3 18 13)

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