1: (1 5 15)

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

2: (0 8 2)

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

3: (5 20 10)

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

4: (7 16 14)

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