1: (8 11 15)

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

2: (6 11 9)

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

3: (10 16 12)

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

4: (1 15 9)

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