1: (5 9 15)

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

2: (5 10 12)

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

3: (3 11 8)

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

4: (1 6 4)

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