1: (5 8 15)

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

2: (3 12 7)

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

3: (5 8 15)

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

4: (1 6 4)

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