1: (5 11 18)

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

2: (4 12 6)

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

3: (1 13 11)

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

4: (0 15 2)

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