1: (1 7 9)

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

2: (6 10 8)

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

3: (4 11 9)

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

4: (2 16 5)

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