1: (3 6 9)

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

2: (5 15 7)

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

3: (3 6 9)

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

4: (1 10 4)

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