1: (4 8 13)

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

2: (3 9 5)

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

3: (6 14 12)

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

4: (4 17 7)

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