1: (0 2 4)

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

2: (1 6 3)

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

3: (2 7 17)

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

4: (5 18 12)

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