1: (1 5 10)

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

2: (6 10 17)

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

3: (0 7 4)

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

4: (3 11 9)

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