1: (0 8 13)

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

2: (6 18 12)

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

3: (4 9 7)

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

4: (11 19 13)

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