1: (1 4 8)

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

2: (2 11 5)

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

3: (1 4 8)

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

4: (7 20 9)

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