1: (0 1 9)

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

2: (1 11 13)

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

3: (6 14 12)

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

4: (2 21 10)

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