1: (0 7 20)

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

2: (0 3 6)

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

3: (2 12 4)

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

4: (5 13 9)

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