1: (1 7 20)

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

2: (0 17 2)

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

3: (1 11 3)

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

4: (4 12 10)

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