1: (6 10 15)

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

2: (2 11 9)

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

3: (6 10 15)

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

4: (8 16 12)

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