1: (1 5 15)

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

2: (0 7 2)

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

3: (4 9 6)

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

4: (5 20 14)

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