1: (0 1 2)

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

2: (2 9 15)

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

3: (6 16 14)

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

4: (1 15 5)

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