1: (0 6 9)

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

2: (5 10 7)

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

3: (4 19 9)

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

4: (1 20 15)

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