1: (4 7 11)

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

2: (0 8 6)

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

3: (4 7 11)

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

4: (2 10 5)

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