1: (0 2 10)

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

2: (1 19 3)

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

3: (2 17 4)

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

4: (9 18 16)

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