1: (7 11 15)

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

2: (9 17 13)

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

3: (6 10 8)

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

4: (5 14 11)

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