1: (1 9 18)

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

2: (0 17 2)

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

3: (1 15 4)

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

4: (3 14 7)

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