1: (1 5 11)

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

2: (4 12 9)

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

3: (3 15 11)

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

4: (10 16 13)

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