1: (0 1 17)

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

2: (9 17 20)

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

3: (8 18 15)

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

4: (6 19 17)

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