1: (3 6 15)

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

2: (0 7 5)

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

3: (1 20 12)

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

4: (2 15 10)

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