1: (6 9 12)

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

2: (4 11 8)

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

3: (6 9 12)

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

4: (5 18 7)

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