1: (0 2 15)

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

2: (1 21 3)

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

3: (2 18 5)

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

4: (13 19 17)

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