1: (1 8 18)

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

2: (0 17 2)

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

3: (1 12 6)

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

4: (4 10 7)

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