1: (2 5 15)

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

2: (4 18 6)

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

3: (0 7 3)

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

4: (2 8 10)

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