1: (0 2 6)

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

2: (4 6 21)

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

3: (3 9 5)

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

4: (2 19 6)

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