1: (0 1 18)

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

2: (8 18 21)

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

3: (5 19 17)

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

4: (1 20 18)

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