1: (0 2 10)

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

2: (1 20 5)

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

3: (3 13 18)

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

4: (9 14 12)

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