1: (0 1 4)

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

2: (2 4 16)

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

3: (3 21 6)

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

4: (5 17 13)

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