



 
Joanne, The letter n indicates which term you are looking at
So to find the first term let n = 1 and you get
To find the second term let n = 2 and you get
To find the second term let n = 3, and so on. You need to read carefully because sometime the sequence starts with n = 0 rather than n = 1. So if your sequence is n^{2} + 3n for n = 0, 1, 2, ... the first term would be
and the second term would be
I hope this helps,  


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