1: (0 6 11)

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

2: (1 20 9)

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

3: (0 8 5)

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

4: (2 6 12)

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