1: (4 7 13)

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

2: (3 11 5)

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

3: (9 13 17)

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

4: (1 8 6)

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