1: (0 2 4)

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

2: (1 20 3)

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

3: (4 7 11)

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

4: (6 12 10)

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