1: (0 1 18)

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

2: (8 18 21)

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

3: (7 19 11)

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

4: (1 20 18)

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