1: (1 7 9)

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

2: (6 11 8)

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

3: (4 14 10)

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

4: (1 15 13)

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