To find the 70th term of the sequence given by the formula \( a_n = n + 14 \), we can substitute \( n = 70 \) into the formula.
\[ a_{70} = 70 + 14 \]
Now, calculate the sum:
\[ a_{70} = 70 + 14 = 84 \]
Therefore, the 70th term of the sequence is \( \boxed{84} \).