1: (2 5 10)

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

2: (7 10 13)

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

3: (9 15 12)

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

4: (1 6 4)

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