1: (2 8 13)

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

2: (0 10 5)

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

3: (9 14 11)

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

4: (4 15 13)

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