1: (2 6 10)

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

2: (3 11 9)

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

3: (1 6 4)

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

4: (5 13 7)

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