1: (0 1 6)

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

2: (3 6 18)

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

3: (2 8 4)

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

4: (5 15 7)

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