Minimum coverings by 6-cycles
There are 3 nonisomorphic minimum coverings by 6-cycles for n = 6:
1. (0,1,2,3,4,5) (0,1,3,2,5,4) (0,2,4,1,5,3)
2. (0,1,2,3,4,5) (0,1,3,5,2,4) (0,2,4,1,5,3)
3. (0,1,2,3,4,5) (0,1,3,5,2,4) (0,2,5,1,4,3)
There are 10 nonisomorphic minimum coverings by 6-cycles for n = 7:
1. (0,1,2,3,4,5) (0,1,2,4,6,3) (0,2,5,3,1,6) (0,2,6,5,1,4)
2. (0,1,2,3,4,5) (0,1,2,5,3,6) (0,2,4,6,1,3) (0,2,6,5,1,4)
3. (0,1,2,3,4,5) (0,1,3,5,2,6) (0,2,1,5,6,4) (0,2,4,1,6,3)
4. (0,1,2,3,4,5) (0,1,3,5,2,6) (0,2,4,1,6,3) (0,3,1,5,6,4)
5. (0,1,2,3,4,5) (0,1,3,5,2,6) (0,2,4,6,1,3) (0,3,6,5,1,4)
6. (0,1,2,3,4,5) (0,1,3,5,2,6) (0,2,4,6,1,5) (0,3,6,5,1,4)
7. (0,1,2,3,4,5) (0,1,3,5,6,2) (0,2,1,4,6,3) (0,4,2,5,1,6)
8. (0,1,2,3,4,5) (0,1,3,5,6,4) (0,2,4,1,6,3) (0,3,1,5,2,6)
9. (0,1,2,3,4,5) (0,1,3,5,6,4) (0,2,5,1,6,3) (0,3,1,4,2,6)
10. (0,1,2,3,4,5) (0,1,3,6,4,2) (0,2,1,6,5,3) (0,4,1,5,2,6)