1: (3 7 13)

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

2: (1 8 6)

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

3: (7 16 9)

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

4: (10 17 15)

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