1: (0 8 13)

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

2: (7 14 9)

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

3: (4 18 13)

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

4: (12 19 15)

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