1: (6 9 12)

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

2: (4 10 8)

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

3: (5 13 11)

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

4: (7 15 12)

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