1: (1 9 12)

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

2: (8 13 10)

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

3: (6 15 12)

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

4: (4 17 7)

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