1: (1 6 8)

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

2: (0 7 2)

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

3: (8 11 14)

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

4: (10 15 12)

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