1: (1 2 15)

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

2: (2 6 10)

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

3: (5 11 7)

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

4: (1 10 3)

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