1: (4 9 13)

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

2: (1 9 7)

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

3: (2 14 12)

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

4: (8 15 10)

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