1: (7 10 12)

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

2: (3 10 9)

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

3: (5 13 11)

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

4: (1 6 4)

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