1: (1 6 9)

(0 20 2)(1 7 4 14 11 9 3)(5 16 15 10 8)(6)(12 18 13)(17 21 19)

2: (5 10 8)

(0 20 2)(1 7 4 14 11 9 3)(5)(6)(8)(10 16 15)(12 18 13)(17 21 19)

3: (4 14 7)

(0 20 2)(1 7 11 9 3)(4)(5)(6)(8)(10 16 15)(12 18 13)(14)(17 21 19)

4: (3 11 9)

(0 20 2)(1 7 11)(3)(4)(5)(6)(8)(9)(10 16 15)(12 18 13)(14)(17 21 19)