1: (3 6 13)

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

2: (2 11 4)

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

3: (3 9 20)

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

4: (0 10 8)

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