1: (0 1 18)

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

2: (7 18 21)

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

3: (2 19 16)

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

4: (1 20 18)

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