1: (5 8 16)

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

2: (6 18 15)

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

3: (4 9 7)

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

4: (8 17 12)

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