1: (0 4 8)

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

2: (4 16 17)

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

3: (3 20 5)

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

4: (2 9 7)

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