1: (5 9 18)

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

2: (1 15 8)

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

3: (4 18 6)

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

4: (0 11 2)

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