1: (1 6 19)

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

2: (0 12 2)

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

3: (5 17 7)

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

4: (6 20 8)

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