1: (6 8 15)

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

2: (4 10 7)

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

3: (6 8 15)

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

4: (5 16 14)

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