1: (2 3 9)

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

2: (3 10 18)

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

3: (0 17 6)

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

4: (1 7 5)

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