1: (1 7 15)

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

2: (5 20 8)

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

3: (0 18 2)

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

4: (4 9 7)

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