Answer:
6n - 5
Explanation:
We find the jump between every 2 terms :
7 - 1 = 6
13 - 7 = 6
19 - 13 = 6
Now we know this will be the co-efficient of n and the 0th term will be added to the term :
1 - 6 = -5
So our final answer will be 6n + (- 5 ) = 6n - 5
Hope this helped and have a good day