1: (1 5 12)

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

2: (3 15 6)

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

3: (11 16 14)

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

4: (2 7 12)

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