1: (0 3 6)

(0)(1 4 2)(3 15 10 8 6 21 19 7 5)(9 14 12)(11 18 17)(13 20 16)

2: (7 15 19)

(0)(1 4 2)(3 15 5)(6 21 19 10 8)(7)(9 14 12)(11 18 17)(13 20 16)

3: (13 20 16)

(0)(1 4 2)(3 15 5)(6 21 19 10 8)(7)(9 14 12)(11 18 17)(13)(16)(20)

4: (10 21 19)

(0)(1 4 2)(3 15 5)(6 21 8)(7)(9 14 12)(10)(11 18 17)(13)(16)(19)(20)