1: (0 1 16)

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

2: (7 16 21)

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

3: (5 17 8)

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

4: (1 20 16)

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