1: (1 7 18)

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

2: (7 10 16)

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

3: (6 12 9)

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

4: (14 19 17)

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