1: (5 13 17)

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

2: (4 15 6)

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

3: (12 20 14)

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

4: (8 13 18)

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