1: (1 3 11)

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

2: (0 5 2)

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

3: (3 20 8)

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

4: (4 9 6)

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