1: (1 3 16)

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

2: (2 18 4)

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

3: (1 3 16)

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

4: (14 19 17)

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