1: (0 1 5)

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

2: (3 5 21)

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

3: (2 10 4)

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

4: (1 19 5)

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