1: (3 6 16)

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

2: (4 20 8)

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

3: (2 7 5)

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

4: (1 16 11)

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