1: (0 7 11)

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

2: (6 15 8)

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

3: (10 17 12)

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

4: (0 9 7)

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