1: (2 7 11)

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

2: (0 7 5)

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

3: (6 12 8)

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

4: (1 9 3)

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