1: (1 16 20)

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

2: (0 19 3)

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

3: (1 18 6)

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

4: (2 11 4)

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