1: (0 1 17)

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

2: (6 17 21)

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

3: (2 19 16)

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

4: (1 20 17)

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