1: (0 2 16)

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

2: (1 20 6)

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

3: (15 21 17)

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

4: (3 16 18)

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