1: (1 5 10)

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

2: (3 15 6)

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

3: (2 11 9)

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

4: (1 14 4)

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