1: (1 8 11)

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

2: (5 12 10)

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

3: (1 9 6)

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

4: (1 15 7)

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