1: (4 7 16)

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

2: (3 8 6)

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

3: (1 9 7)

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

4: (2 17 15)

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