1: (0 3 16)

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

2: (2 17 4)

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

3: (8 19 16)

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

4: (7 20 18)

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