1: (9 11 15)

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

2: (7 12 10)

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

3: (4 13 11)

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

4: (6 20 8)

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