1: (4 8 13)

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

2: (1 10 7)

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

3: (9 14 11)

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

4: (5 16 13)

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