1: (0 1 8)

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

2: (1 9 13)

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

3: (7 14 12)

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

4: (6 19 10)

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