1: (1 5 15)

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

2: (0 7 2)

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

3: (5 20 11)

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

4: (8 16 14)

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