1: (0 1 5)

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

2: (3 5 17)

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

3: (2 7 4)

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

4: (1 9 5)

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