1: (6 8 13)

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

2: (5 12 7)

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

3: (4 10 13)

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

4: (9 17 11)

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