1: (0 7 12)

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

2: (5 20 9)

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

3: (6 11 8)

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

4: (3 7 14)

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