1: (1 6 15)

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

2: (4 16 14)

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

3: (2 7 5)

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

4: (11 17 15)

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