1: (0 2 6)

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

2: (1 9 3)

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

3: (6 16 18)

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

4: (15 19 17)

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