1: (0 1 4)

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

2: (4 7 20)

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

3: (3 15 6)

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

4: (9 21 19)

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