1: (0 8 12)

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

2: (7 14 9)

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

3: (6 15 12)

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

4: (11 17 13)

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