1: (0 1 3)

(0)(1 19 17 15 3 7 5)(2 13 10 9 4)(6 12 8)(11 16 14)(18 21 20)

2: (3 7 19)

(0)(1 19 5)(2 13 10 9 4)(3 17 15)(6 12 8)(7)(11 16 14)(18 21 20)

3: (2 9 4)

(0)(1 19 5)(2)(3 17 15)(4)(6 12 8)(7)(9 13 10)(11 16 14)(18 21 20)

4: (6 12 8)

(0)(1 19 5)(2)(3 17 15)(4)(6)(7)(8)(9 13 10)(11 16 14)(12)(18 21 20)