1: (0 2 16)

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

2: (1 20 4)

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

3: (6 21 18)

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

4: (2 19 5)

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