1: (4 15 18)

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

2: (14 20 17)

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

3: (2 18 8)

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

4: (0 19 5)

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