1: (7 12 15)

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

2: (3 6 15)

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

3: (0 9 4)

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

4: (5 10 8)

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