1: (0 2 10)

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

2: (1 20 6)

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

3: (4 13 18)

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

4: (9 14 11)

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