1: (1 5 8)

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

2: (3 15 6)

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

3: (7 18 11)

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

4: (1 12 10)

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