1: (5 9 18)

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

2: (4 14 6)

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

3: (5 12 8)

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

4: (10 16 13)

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