1: (1 5 11)

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

2: (4 20 7)

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

3: (1 6 15)

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

4: (0 18 2)

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