1: (0 3 6)

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

2: (6 8 11)

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

3: (7 13 9)

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

4: (2 12 10)

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