1: (1 3 6)

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

2: (4 6 12)

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

3: (5 15 7)

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

4: (10 16 13)

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