1: (3 10 15)

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

2: (4 20 13)

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

3: (9 14 12)

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

4: (6 10 16)

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