1: (0 2 6)

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

2: (2 8 16)

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

3: (7 19 14)

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

4: (13 17 15)

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