1: (0 3 8)

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

2: (5 8 15)

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

3: (4 10 6)

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

4: (1 20 7)

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