1: (0 3 4)

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

2: (4 8 13)

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

3: (7 18 9)

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

4: (3 13 6)

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