1: (1 7 9)

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

2: (6 10 8)

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

3: (5 20 9)

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

4: (0 19 4)

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