1: (3 9 15)

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

2: (1 10 4)

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

3: (9 17 12)

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

4: (13 18 16)

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