1: (0 2 7)

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

2: (1 20 3)

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

3: (2 9 4)

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

4: (6 11 8)

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