1: (2 9 12)

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

2: (5 13 11)

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

3: (1 6 4)

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

4: (2 16 8)

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