1: (0 1 3)

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

2: (3 7 15)

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

3: (6 16 14)

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

4: (1 15 4)

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