1: (0 1 4)

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

2: (2 4 9)

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

3: (1 7 3)

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

4: (5 11 8)

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