1: (1 3 9)

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

2: (0 5 2)

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

3: (4 11 7)

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

4: (3 20 8)

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