I have a list of numbers in a specific order in column C. The sequences is not important, I just want to determine the minimum and maximum values for row count of 10, 13 or some smaller number. Then in column F place the counting sequence of steps.

so if the numbers in column c are;
1,2,3,4,5,6,7,8,9,13,10,11,12 or 1,2,3,4,5,6,7,8,9,10 or 7,7,8,9,10


then f column would be;
1,2,3,4,5,6,7,8,9,10,11,12,13 or 1,2,3,4,5,6,7,8,9,10 or 1,2,3,4,5

The only way I can think of is a macro but don't know enough about macro's.