1: (1 5 9)

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

2: (4 12 6)

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

3: (8 13 11)

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

4: (1 6 10)

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