1: (4 7 11)

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

2: (6 13 9)

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

3: (4 7 11)

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

4: (10 16 12)

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