1: (1 7 15)

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

2: (6 20 8)

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

3: (1 7 15)

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

4: (0 19 3)

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