1: (3 6 9)

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

2: (5 12 7)

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

3: (1 10 4)

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

4: (6 14 8)

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