1: (3 4 8)

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

2: (4 15 18)

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

3: (14 19 17)

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

4: (2 18 8)

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