1: (2 3 8)

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

2: (3 9 18)

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

3: (0 16 5)

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

4: (1 6 4)

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