1: (9 12 15)

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

2: (7 15 17)

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

3: (5 13 11)

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

4: (4 10 8)

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