1: (0 5 10)

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

2: (4 17 9)

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

3: (3 19 16)

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

4: (10 15 18)

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