1: (0 8 10)

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

2: (7 11 9)

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

3: (6 17 10)

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

4: (1 19 16)

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