1: (7 9 18)

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

2: (4 10 8)

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

3: (9 19 11)

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

4: (6 20 17)

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