1: (0 5 7)

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

2: (3 9 5)

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

3: (6 18 8)

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

4: (2 19 4)

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