1: (6 11 13)

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

2: (0 12 10)

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

3: (6 11 13)

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

4: (5 14 7)

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