1: (0 3 8)

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

2: (5 8 21)

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

3: (4 10 6)

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

4: (3 20 8)

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