1: (0 3 6)

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

2: (2 20 4)

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

3: (3 9 5)

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

4: (1 10 8)

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