1: (0 6 15)

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

2: (15 16 18)

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

3: (1 20 9)

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

4: (6 18 14)

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