1: (0 12 16)

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

2: (4 17 15)

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

3: (2 20 7)

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

4: (12 19 16)

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