drag down rows that match column in different sheet, but skip every 3 cells in column

My example is in cell T2. I have it set up where i can drag the formula across that row correctly, but I cannot figure out how to drag it down each column the way i want it. for example i want the formula:
in t2 to start at cell 'option data' c2
in t3 to start at cell 'option data' c8
in t4 to start at cell 'option data' c14

when i drag down the formula it starts t3 at cell 'option data' c3

That works!! Thank you very much for the quick response and helpful formula!!

do you mind looking at this problem as well?...it is very similar to my earlier post.

match function inside offset function to autofill a formula to start at end of prev series
Please see attachment:

I am trying to set up a formula in AI2 to autofill because when i drag down it references the wrong cells in the tab 'option data'. I previously received help in setting this up in W2, which is similar to what I am trying to do in AI2, excpet I have a match function embedded in AI2 which I cannot figure out how to reference the cells I want to match which are in the tab 'option data' column g

for example i want to match sheet11ai2, to reference optiondatag2:g4 based on sheet11w2. then for the next row down sheet11ai3 to reference optiondatag8:g10, based on sheet11w3...and so on

*note in cell w2 i have a defined name set up labeled "xprice"

Thank you for any help in advance!

That works great! thank you very much!