1: (0 6 9)

(0)(1 19 3)(2 6 14 9 4)(5 10 7)(8 15 13)(11 17 16)(12 20 18)

2: (5 10 7)

(0)(1 19 3)(2 6 14 9 4)(5)(7)(8 15 13)(10)(11 17 16)(12 20 18)

3: (4 14 9)

(0)(1 19 3)(2 6 14)(4)(5)(7)(8 15 13)(9)(10)(11 17 16)(12 20 18)

4: (8 15 13)

(0)(1 19 3)(2 6 14)(4)(5)(7)(8)(9)(10)(11 17 16)(12 20 18)(13)(15)