1: (6 9 13)

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

2: (4 11 7)

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

3: (6 9 13)

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

4: (10 14 12)

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