1: (2 5 20)

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

2: (0 8 3)

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

3: (4 13 7)

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

4: (2 6 10)

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