1: (0 2 6)

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

2: (4 6 21)

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

3: (3 10 5)

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

4: (2 17 6)

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