1: (1 4 9)

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

2: (3 17 5)

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

3: (0 7 2)

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

4: (4 20 8)

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