1: (0 3 18)

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

2: (1 20 7)

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

3: (4 18 13)

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

4: (2 16 5)

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