1: (0 3 6)

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

2: (2 19 4)

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

3: (6 20 21)

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

4: (3 8 5)

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