1: (1 6 11)

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

2: (3 15 8)

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

3: (7 14 9)

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

4: (1 17 4)

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