1: (0 2 12)

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

2: (1 20 3)

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

3: (6 21 16)

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

4: (11 18 15)

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