1: (9 15 18)

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

2: (14 20 16)

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

3: (5 18 13)

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

4: (4 12 6)

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