1: (0 1 18)

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

2: (8 18 21)

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

3: (7 19 17)

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

4: (6 20 18)

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