1: (5 9 15)

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

2: (4 10 6)

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

3: (3 13 9)

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

4: (1 14 12)

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