1: (0 1 17)

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

2: (3 17 21)

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

3: (2 19 9)

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

4: (6 18 16)

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