1: (0 4 16)

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

2: (2 20 5)

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

3: (4 19 13)

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

4: (12 17 15)

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