1: (0 2 9)

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

2: (4 9 20)

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

3: (2 10 6)

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

4: (3 8 5)

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