1: (0 2 12)

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

2: (10 12 21)

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

3: (8 15 11)

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

4: (6 19 9)

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