1: (0 2 4)

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

2: (1 5 3)

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

3: (2 12 19)

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

4: (9 20 18)

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