1: (1 7 15)

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

2: (4 17 13)

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

3: (3 8 5)

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

4: (12 20 15)

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