1: (9 12 15)

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

2: (7 14 11)

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

3: (4 10 8)

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

4: (3 5 15)

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