1: (1 6 19)

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

2: (0 18 3)

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

3: (1 6 19)

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

4: (2 8 4)

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