1: (1 5 11)

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

2: (3 13 10)

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

3: (0 6 4)

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

4: (5 12 7)

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