1: (4 10 12)

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

2: (3 10 5)

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

3: (9 15 11)

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

4: (0 12 5)

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