1: (4 8 15)

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

2: (6 16 14)

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

3: (2 9 7)

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

4: (3 15 12)

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