1: (2 6 11)

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

2: (0 7 4)

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

3: (2 6 11)

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

4: (1 17 3)

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