Hi,

I'd like to create a sequence of numbers such that it'll run for three consecutive numbers and skip the next three and so on within a given range. For instance, if I define a range of 12 to 1000, then the series should like this:

12, 13, 14, (skipped 15, 16, 17) 18, 19, 20, (skipped 21, 22, 23) 24, 25..........1000.

I found some examples where they used functions like i++, but I didn't understand that as there were no explanations. Please let me know if this is possible to do.

Thank you in advance.