1: (4 6 15)

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

2: (4 8 11)

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

3: (7 12 9)

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

4: (10 16 13)

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