1: (0 4 10)

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

2: (3 16 5)

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

3: (2 18 11)

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

4: (8 20 10)

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