1: (2 7 17)

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

2: (0 12 5)

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

3: (1 20 4)

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

4: (6 15 7)

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