1: (3 7 15)

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

2: (4 16 14)

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

3: (3 11 5)

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

4: (6 13 8)

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