1: (6 11 12)

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

2: (1 6 10)

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

3: (4 18 7)

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

4: (6 12 9)

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