1: (0 1 17)

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

2: (6 17 21)

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

3: (3 18 15)

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

4: (1 20 17)

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