1: (5 8 16)

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

2: (7 17 13)

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

3: (6 20 16)

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

4: (12 18 15)

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