1: (1 6 8)

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

2: (4 12 7)

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

3: (1 6 8)

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

4: (3 19 5)

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