1: (2 6 16)

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

2: (1 13 5)

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

3: (11 17 15)

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

4: (4 18 16)

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