1: (5 7 15)

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

2: (1 7 20)

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

3: (0 17 2)

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

4: (4 18 6)

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