1: (1 6 8)

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

2: (5 9 7)

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

3: (4 10 8)

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

4: (3 13 9)

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