1: (1 4 13)

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

2: (3 17 5)

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

3: (0 8 2)

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

4: (1 7 18)

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