1: (1 6 11)

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

2: (0 7 2)

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

3: (6 18 8)

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

4: (10 20 12)

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