Find the Indicated Term for the Sequence $13 ^ { \text {th } }$

Multiple Choice

Find the indicated term for the sequence.
-Find the $13 ^ { \text {th } }$ term of the sequence whose general term is $\mathrm { a } _ { \mathrm { n } } = \mathrm { n } ^ { 2 } - \mathrm { n }$ .

A) 13
B) -156
C) 182
D) 156