1: (3 15 21)

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

2: (1 17 11)

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

3: (14 18 16)

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

4: (0 11 15)

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