1: (0 5 8)

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

2: (4 13 7)

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

3: (2 20 8)

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

4: (0 6 3)

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