1: (1 5 8)

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

2: (5 10 18)

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

3: (0 17 3)

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

4: (7 12 9)

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