1: (0 5 9)

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

2: (2 10 8)

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

3: (1 6 4)

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

4: (9 12 15)

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