1: (3 9 20)

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

2: (0 19 7)

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

3: (2 18 4)

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

4: (3 10 5)

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