1: (1 8 11)

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

2: (4 12 10)

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

3: (3 9 7)

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

4: (6 13 11)

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