1: (0 3 9)

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

2: (5 9 21)

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

3: (4 10 6)

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

4: (3 20 9)

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