1: (10 15 20)

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

2: (7 16 14)

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

3: (4 10 9)

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

4: (6 12 8)

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