1: (0 8 16)

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

2: (7 17 14)

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

3: (6 18 16)

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

4: (12 17 15)

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