1: (2 5 8)

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

2: (8 15 19)

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

3: (9 20 18)

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

4: (1 7 4)

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